/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 06:51:08,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:51:08,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:51:09,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:51:09,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:51:09,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:51:09,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:51:09,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:51:09,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:51:09,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:51:09,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:51:09,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:51:09,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:51:09,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:51:09,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:51:09,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:51:09,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:51:09,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:51:09,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:51:09,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:51:09,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:51:09,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:51:09,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:51:09,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:51:09,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:51:09,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:51:09,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:51:09,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:51:09,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:51:09,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:51:09,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:51:09,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:51:09,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:51:09,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:51:09,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:51:09,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:51:09,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:51:09,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:51:09,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:51:09,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:51:09,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:51:09,070 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 06:51:09,097 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:51:09,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:51:09,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:51:09,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:51:09,099 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:51:09,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:51:09,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:51:09,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:51:09,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:51:09,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:51:09,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:51:09,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:51:09,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:51:09,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:51:09,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:51:09,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:51:09,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:51:09,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:51:09,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:51:09,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:51:09,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:51:09,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:51:09,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:51:09,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:51:09,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:51:09,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:51:09,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:51:09,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:51:09,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:51:09,105 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:51:09,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:51:09,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:51:09,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:51:09,690 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:51:09,691 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:51:09,692 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 06:51:09,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe27cbd47/b2242ecb5e04482c972c0881d99a8a1b/FLAG1aacdac00 [2020-09-25 06:51:10,331 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:51:10,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 06:51:10,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe27cbd47/b2242ecb5e04482c972c0881d99a8a1b/FLAG1aacdac00 [2020-09-25 06:51:10,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe27cbd47/b2242ecb5e04482c972c0881d99a8a1b [2020-09-25 06:51:10,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:51:10,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:51:10,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:51:10,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:51:10,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:51:10,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:51:10" (1/1) ... [2020-09-25 06:51:10,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25dd80d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:10, skipping insertion in model container [2020-09-25 06:51:10,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:51:10" (1/1) ... [2020-09-25 06:51:10,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:51:10,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:51:11,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:51:11,038 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:51:11,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:51:11,173 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:51:11,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11 WrapperNode [2020-09-25 06:51:11,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:51:11,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:51:11,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:51:11,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:51:11,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (1/1) ... [2020-09-25 06:51:11,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:51:11,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:51:11,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:51:11,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:51:11,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (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 06:51:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:51:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:51:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 06:51:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-09-25 06:51:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-09-25 06:51:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:51:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:51:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 06:51:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:51:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-09-25 06:51:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:51:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-09-25 06:51:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:51:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:51:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:51:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:51:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:51:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:51:11,771 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:51:11,772 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-09-25 06:51:11,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:51:11 BoogieIcfgContainer [2020-09-25 06:51:11,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:51:11,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:51:11,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:51:11,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:51:11,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:51:10" (1/3) ... [2020-09-25 06:51:11,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efffc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:51:11, skipping insertion in model container [2020-09-25 06:51:11,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:11" (2/3) ... [2020-09-25 06:51:11,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efffc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:51:11, skipping insertion in model container [2020-09-25 06:51:11,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:51:11" (3/3) ... [2020-09-25 06:51:11,788 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-09-25 06:51:11,799 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:51:11,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:51:11,831 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:51:11,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:51:11,864 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:51:11,864 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:51:11,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:51:11,864 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:51:11,864 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:51:11,865 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:51:11,865 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:51:11,889 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-09-25 06:51:11,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 06:51:11,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:11,898 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 06:51:11,898 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:11,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:11,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1588916751, now seen corresponding path program 1 times [2020-09-25 06:51:11,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:11,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309588553] [2020-09-25 06:51:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:12,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:12,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:12,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:12,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:12,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:51:12,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:51:12,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-09-25 06:51:12,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:12,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:51:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:12,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:51:12,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:12,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:12,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:12,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:12,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:12,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:51:12,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:12,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:12,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:12,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:12,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:12,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:12,696 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 06:51:12,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309588553] [2020-09-25 06:51:12,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:12,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:51:12,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136718540] [2020-09-25 06:51:12,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:51:12,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:12,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:51:12,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:51:12,732 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2020-09-25 06:51:13,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:13,135 INFO L93 Difference]: Finished difference Result 245 states and 295 transitions. [2020-09-25 06:51:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:51:13,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 06:51:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:13,151 INFO L225 Difference]: With dead ends: 245 [2020-09-25 06:51:13,151 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 06:51:13,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:51:13,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 06:51:13,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-09-25 06:51:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-25 06:51:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2020-09-25 06:51:13,221 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 23 [2020-09-25 06:51:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:13,222 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2020-09-25 06:51:13,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:51:13,222 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2020-09-25 06:51:13,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 06:51:13,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:13,225 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 06:51:13,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:51:13,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:13,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:13,227 INFO L82 PathProgramCache]: Analyzing trace with hash -119454780, now seen corresponding path program 1 times [2020-09-25 06:51:13,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:13,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883922750] [2020-09-25 06:51:13,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:13,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:13,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:51:13,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:51:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 06:51:13,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:13,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:51:13,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:51:13,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:51:13,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:13,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:13,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:13,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:51:13,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:13,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:13,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:13,609 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 06:51:13,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883922750] [2020-09-25 06:51:13,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:13,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:51:13,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316194859] [2020-09-25 06:51:13,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:51:13,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:13,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:51:13,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:51:13,614 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 5 states. [2020-09-25 06:51:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:13,966 INFO L93 Difference]: Finished difference Result 240 states and 269 transitions. [2020-09-25 06:51:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:51:13,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-09-25 06:51:13,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:13,969 INFO L225 Difference]: With dead ends: 240 [2020-09-25 06:51:13,969 INFO L226 Difference]: Without dead ends: 135 [2020-09-25 06:51:13,971 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 06:51:13,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-25 06:51:13,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-09-25 06:51:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 06:51:13,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-09-25 06:51:13,989 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 23 [2020-09-25 06:51:13,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:13,989 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-09-25 06:51:13,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:51:13,990 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-09-25 06:51:13,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 06:51:13,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:13,992 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 06:51:13,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:51:13,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:13,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:13,994 INFO L82 PathProgramCache]: Analyzing trace with hash 23578911, now seen corresponding path program 1 times [2020-09-25 06:51:13,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:13,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879938844] [2020-09-25 06:51:13,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:14,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:19,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 06:51:19,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:51:19,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 06:51:19,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:19,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:51:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 06:51:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:51:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:19,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:19,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:19,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:19,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:51:19,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:19,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:19,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:19,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:19,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:19,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:19,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 06:51:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:19,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:19,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:51:19,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:19,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:51:19,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:19,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:51:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:51:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:19,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 06:51:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:19,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:19,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:19,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:19,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:51:19,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:19,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:51:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:51:19,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879938844] [2020-09-25 06:51:19,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:19,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:51:19,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176976090] [2020-09-25 06:51:19,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:51:19,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:19,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:51:19,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:51:19,180 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 6 states. [2020-09-25 06:51:19,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:19,641 INFO L93 Difference]: Finished difference Result 236 states and 266 transitions. [2020-09-25 06:51:19,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:51:19,643 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-09-25 06:51:19,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:19,648 INFO L225 Difference]: With dead ends: 236 [2020-09-25 06:51:19,648 INFO L226 Difference]: Without dead ends: 158 [2020-09-25 06:51:19,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:51:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-25 06:51:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 128. [2020-09-25 06:51:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 06:51:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2020-09-25 06:51:19,664 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 59 [2020-09-25 06:51:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:19,664 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 141 transitions. [2020-09-25 06:51:19,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:51:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 141 transitions. [2020-09-25 06:51:19,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 06:51:19,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:19,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:19,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:51:19,669 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:19,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:19,669 INFO L82 PathProgramCache]: Analyzing trace with hash 514154539, now seen corresponding path program 1 times [2020-09-25 06:51:19,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:19,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602274611] [2020-09-25 06:51:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:19,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:19,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:20,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:24,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:24,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:51:24,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:51:24,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:51:24,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:24,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:24,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:51:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:51:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:51:24,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:24,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:24,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:24,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:24,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:24,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:24,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:51:24,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:24,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 06:51:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:24,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:24,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:51:24,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:24,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:51:24,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:24,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 06:51:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:24,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 06:51:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:24,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:24,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:24,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:24,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:51:24,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:24,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:51:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:24,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:24,803 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 06:51:24,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602274611] [2020-09-25 06:51:24,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:24,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:51:24,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262420717] [2020-09-25 06:51:24,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:51:24,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:24,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:51:24,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:51:24,820 INFO L87 Difference]: Start difference. First operand 128 states and 141 transitions. Second operand 5 states. [2020-09-25 06:51:25,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:25,141 INFO L93 Difference]: Finished difference Result 280 states and 314 transitions. [2020-09-25 06:51:25,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:51:25,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-09-25 06:51:25,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:25,143 INFO L225 Difference]: With dead ends: 280 [2020-09-25 06:51:25,143 INFO L226 Difference]: Without dead ends: 183 [2020-09-25 06:51:25,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 06:51:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-09-25 06:51:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 129. [2020-09-25 06:51:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-09-25 06:51:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2020-09-25 06:51:25,173 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 62 [2020-09-25 06:51:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:25,174 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2020-09-25 06:51:25,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:51:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2020-09-25 06:51:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 06:51:25,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:25,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:25,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:51:25,182 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:25,182 INFO L82 PathProgramCache]: Analyzing trace with hash -590468099, now seen corresponding path program 1 times [2020-09-25 06:51:25,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:25,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988717368] [2020-09-25 06:51:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:25,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:25,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:25,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:25,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:26,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:30,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:30,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 06:51:30,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:51:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:51:30,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:30,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:51:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:51:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:51:30,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:30,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:30,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:30,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:30,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:30,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:30,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:51:30,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:30,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:30,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:30,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 06:51:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:30,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:30,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:30,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:51:30,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:51:30,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:30,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 06:51:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:30,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 06:51:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:30,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:30,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:30,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:30,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:30,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:51:30,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:30,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:51:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:51:30,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988717368] [2020-09-25 06:51:30,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:30,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:51:30,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710413449] [2020-09-25 06:51:30,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:51:30,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:30,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:51:30,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:51:30,282 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand 5 states. [2020-09-25 06:51:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:30,619 INFO L93 Difference]: Finished difference Result 293 states and 329 transitions. [2020-09-25 06:51:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:51:30,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-09-25 06:51:30,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:30,622 INFO L225 Difference]: With dead ends: 293 [2020-09-25 06:51:30,622 INFO L226 Difference]: Without dead ends: 183 [2020-09-25 06:51:30,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 06:51:30,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-09-25 06:51:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 130. [2020-09-25 06:51:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-25 06:51:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-09-25 06:51:30,635 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 69 [2020-09-25 06:51:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:30,636 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-09-25 06:51:30,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:51:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-09-25 06:51:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 06:51:30,638 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:51:30,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:51:30,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:51:30,639 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:51:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:51:30,639 INFO L82 PathProgramCache]: Analyzing trace with hash 351512012, now seen corresponding path program 1 times [2020-09-25 06:51:30,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:51:30,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052391511] [2020-09-25 06:51:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:51:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:30,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:30,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:30,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:30,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:31,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:31,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:35,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 06:51:35,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:51:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 06:51:35,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:35,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:51:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:51:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:51:35,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:35,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:51:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:35,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:51:35,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:51:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:35,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:51:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:35,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 06:51:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:35,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:35,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:51:35,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:35,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 06:51:35,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:35,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:51:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:51:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:51:35,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:51:35,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 06:51:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:51:35,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:51:35,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:51:35,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:51:35,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:51:35,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:51:35,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:51:35,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:51:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:51:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:51:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:51:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:51:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:51:35,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052391511] [2020-09-25 06:51:35,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:51:35,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:51:35,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856329138] [2020-09-25 06:51:35,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:51:35,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:51:35,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:51:35,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:51:35,835 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 8 states. [2020-09-25 06:51:36,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:51:36,122 INFO L93 Difference]: Finished difference Result 176 states and 193 transitions. [2020-09-25 06:51:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:51:36,123 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-09-25 06:51:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:51:36,123 INFO L225 Difference]: With dead ends: 176 [2020-09-25 06:51:36,123 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:51:36,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:51:36,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:51:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:51:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:51:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:51:36,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-09-25 06:51:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:51:36,126 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:51:36,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:51:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:51:36,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:51:36,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:51:36,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:51:36,371 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2020-09-25 06:51:36,371 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 06:51:36,371 INFO L268 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-09-25 06:51:36,371 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2020-09-25 06:51:36,371 INFO L268 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-09-25 06:51:36,371 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2020-09-25 06:51:36,372 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-25 06:51:36,372 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed. [2020-09-25 06:51:36,372 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (let ((.cse0 (<= elem_exists_~size |elem_exists_#in~size|))) (or (and (<= elem_exists_~size (+ |elem_exists_#in~size| elem_exists_~i~0)) .cse0) (and .cse0 (<= 1 |elem_exists_#in~size|)))) [2020-09-25 06:51:36,372 INFO L268 CegarLoopResult]: For program point L11-7(lines 11 13) no Hoare annotation was computed. [2020-09-25 06:51:36,372 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-25 06:51:36,372 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 06:51:36,373 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 06:51:36,373 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 06:51:36,373 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 06:51:36,373 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 06:51:36,373 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 06:51:36,373 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 06:51:36,374 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 06:51:36,374 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:51:36,374 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 06:51:36,374 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:51:36,374 INFO L271 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: true [2020-09-25 06:51:36,374 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2020-09-25 06:51:36,375 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 06:51:36,375 INFO L268 CegarLoopResult]: For program point L5(lines 5 8) no Hoare annotation was computed. [2020-09-25 06:51:36,375 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 06:51:36,375 INFO L268 CegarLoopResult]: For program point L5-1(lines 5 8) no Hoare annotation was computed. [2020-09-25 06:51:36,375 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2020-09-25 06:51:36,375 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:51:36,375 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:51:36,376 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:51:36,376 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:51:36,376 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2020-09-25 06:51:36,376 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 06:51:36,376 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-09-25 06:51:36,376 INFO L264 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: false [2020-09-25 06:51:36,376 INFO L268 CegarLoopResult]: For program point L52-3(line 52) no Hoare annotation was computed. [2020-09-25 06:51:36,377 INFO L268 CegarLoopResult]: For program point L52-4(line 52) no Hoare annotation was computed. [2020-09-25 06:51:36,377 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2020-09-25 06:51:36,377 INFO L268 CegarLoopResult]: For program point L44-3(line 44) no Hoare annotation was computed. [2020-09-25 06:51:36,377 INFO L268 CegarLoopResult]: For program point L44-4(line 44) no Hoare annotation was computed. [2020-09-25 06:51:36,377 INFO L264 CegarLoopResult]: At program point L44-5(lines 44 48) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 06:51:36,377 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-25 06:51:36,378 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2020-09-25 06:51:36,378 INFO L268 CegarLoopResult]: For program point L36-4(line 36) no Hoare annotation was computed. [2020-09-25 06:51:36,378 INFO L268 CegarLoopResult]: For program point L36-5(line 36) no Hoare annotation was computed. [2020-09-25 06:51:36,378 INFO L264 CegarLoopResult]: At program point L36-6(lines 36 39) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 06:51:36,378 INFO L268 CegarLoopResult]: For program point L36-7(lines 36 39) no Hoare annotation was computed. [2020-09-25 06:51:36,378 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2020-09-25 06:51:36,379 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 06:51:36,379 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-25 06:51:36,379 INFO L264 CegarLoopResult]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 06:51:36,379 INFO L268 CegarLoopResult]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2020-09-25 06:51:36,379 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 06:51:36,379 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 06:51:36,379 INFO L268 CegarLoopResult]: For program point L45-3(lines 45 47) no Hoare annotation was computed. [2020-09-25 06:51:36,380 INFO L268 CegarLoopResult]: For program point L45-4(line 45) no Hoare annotation was computed. [2020-09-25 06:51:36,380 INFO L268 CegarLoopResult]: For program point L45-5(line 45) no Hoare annotation was computed. [2020-09-25 06:51:36,380 INFO L264 CegarLoopResult]: At program point L45-6(lines 45 47) the Hoare annotation is: false [2020-09-25 06:51:36,380 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 06:51:36,380 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 31) no Hoare annotation was computed. [2020-09-25 06:51:36,380 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-09-25 06:51:36,381 INFO L268 CegarLoopResult]: For program point L29-5(line 29) no Hoare annotation was computed. [2020-09-25 06:51:36,381 INFO L264 CegarLoopResult]: At program point L29-6(lines 29 31) the Hoare annotation is: false [2020-09-25 06:51:36,381 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 06:51:36,381 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 06:51:36,381 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2020-09-25 06:51:36,381 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: false [2020-09-25 06:51:36,382 INFO L268 CegarLoopResult]: For program point L46-3(line 46) no Hoare annotation was computed. [2020-09-25 06:51:36,382 INFO L268 CegarLoopResult]: For program point L46-4(line 46) no Hoare annotation was computed. [2020-09-25 06:51:36,382 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 06:51:36,382 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-25 06:51:36,382 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-09-25 06:51:36,382 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 06:51:36,382 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 06:51:36,383 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 06:51:36,383 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: false [2020-09-25 06:51:36,383 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed. [2020-09-25 06:51:36,383 INFO L268 CegarLoopResult]: For program point L30-4(line 30) no Hoare annotation was computed. [2020-09-25 06:51:36,383 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 06:51:36,383 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2020-09-25 06:51:36,383 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-25 06:51:36,384 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-25 06:51:36,384 INFO L264 CegarLoopResult]: At program point L22-6(lines 22 25) the Hoare annotation is: (= main_~n~0 0) [2020-09-25 06:51:36,384 INFO L268 CegarLoopResult]: For program point L22-7(lines 22 25) no Hoare annotation was computed. [2020-09-25 06:51:36,384 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-09-25 06:51:36,384 INFO L268 CegarLoopResult]: For program point L40-3(line 40) no Hoare annotation was computed. [2020-09-25 06:51:36,384 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed. [2020-09-25 06:51:36,384 INFO L264 CegarLoopResult]: At program point L40-5(lines 40 49) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 06:51:36,385 INFO L268 CegarLoopResult]: For program point L40-6(lines 40 49) no Hoare annotation was computed. [2020-09-25 06:51:36,385 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 06:51:36,385 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 06:51:36,385 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 06:51:36,385 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 06:51:36,385 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 06:51:36,385 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-09-25 06:51:36,386 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 43) no Hoare annotation was computed. [2020-09-25 06:51:36,386 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed. [2020-09-25 06:51:36,386 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed. [2020-09-25 06:51:36,386 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed. [2020-09-25 06:51:36,386 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 06:51:36,386 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed. [2020-09-25 06:51:36,386 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 43) no Hoare annotation was computed. [2020-09-25 06:51:36,387 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 06:51:36,387 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 06:51:36,387 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-09-25 06:51:36,387 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 06:51:36,387 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-25 06:51:36,387 INFO L264 CegarLoopResult]: At program point L50-5(lines 50 54) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-09-25 06:51:36,387 INFO L268 CegarLoopResult]: For program point L50-6(lines 50 54) no Hoare annotation was computed. [2020-09-25 06:51:36,388 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 06:51:36,388 INFO L264 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: false [2020-09-25 06:51:36,388 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-09-25 06:51:36,388 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed. [2020-09-25 06:51:36,388 INFO L268 CegarLoopResult]: For program point L42-4(line 42) no Hoare annotation was computed. [2020-09-25 06:51:36,388 INFO L268 CegarLoopResult]: For program point L42-5(line 42) no Hoare annotation was computed. [2020-09-25 06:51:36,388 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 06:51:36,389 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 06:51:36,389 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 06:51:36,389 INFO L268 CegarLoopResult]: For program point L51-3(lines 51 53) no Hoare annotation was computed. [2020-09-25 06:51:36,389 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 06:51:36,389 INFO L268 CegarLoopResult]: For program point L51-4(line 51) no Hoare annotation was computed. [2020-09-25 06:51:36,389 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-09-25 06:51:36,389 INFO L268 CegarLoopResult]: For program point L51-5(line 51) no Hoare annotation was computed. [2020-09-25 06:51:36,390 INFO L264 CegarLoopResult]: At program point L51-6(lines 51 53) the Hoare annotation is: false [2020-09-25 06:51:36,390 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 06:51:36,390 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 06:51:36,390 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 06:51:36,390 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 06:51:36,390 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 06:51:36,391 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 06:51:36,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:51:36 BoogieIcfgContainer [2020-09-25 06:51:36,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:51:36,419 INFO L168 Benchmark]: Toolchain (without parser) took 25717.01 ms. Allocated memory was 142.1 MB in the beginning and 354.4 MB in the end (delta: 212.3 MB). Free memory was 104.1 MB in the beginning and 239.0 MB in the end (delta: -134.8 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:36,420 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 142.1 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:51:36,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.39 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 103.5 MB in the beginning and 182.3 MB in the end (delta: -78.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:36,422 INFO L168 Benchmark]: Boogie Preprocessor took 55.08 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 179.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:36,423 INFO L168 Benchmark]: RCFGBuilder took 548.30 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 151.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:36,424 INFO L168 Benchmark]: TraceAbstraction took 24636.13 ms. Allocated memory was 203.4 MB in the beginning and 354.4 MB in the end (delta: 151.0 MB). Free memory was 150.7 MB in the beginning and 239.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 62.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:51:36,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 142.1 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 465.39 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 103.5 MB in the beginning and 182.3 MB in the end (delta: -78.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.08 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 179.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 548.30 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 151.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24636.13 ms. Allocated memory was 203.4 MB in the beginning and 354.4 MB in the end (delta: 151.0 MB). Free memory was 150.7 MB in the beginning and 239.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 62.7 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 && x <= 0) && n == 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (n <= x && x <= 0) && n == 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (n <= x && x <= 0) && n == 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (n <= x && x <= 0) && n == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (size <= \old(size) + i && size <= \old(size)) || (size <= \old(size) && 1 <= \old(size)) - 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: 24.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 649 SDtfs, 613 SDslu, 699 SDs, 0 SdLazy, 976 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, 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, 6 MinimizatonAttempts, 150 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 58 PreInvPairs, 67 NumberOfFragments, 106 HoareAnnotationTreeSize, 58 FomulaSimplifications, 324 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 64 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 21.5s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 29306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 3/3 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...