/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:20:59,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:20:59,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:20:59,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:20:59,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:20:59,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:20:59,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:20:59,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:20:59,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:20:59,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:20:59,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:20:59,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:20:59,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:20:59,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:20:59,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:20:59,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:20:59,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:20:59,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:20:59,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:20:59,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:20:59,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:20:59,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:20:59,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:20:59,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:20:59,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:20:59,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:20:59,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:20:59,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:20:59,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:20:59,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:20:59,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:20:59,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:20:59,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:20:59,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:20:59,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:20:59,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:20:59,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:20:59,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:20:59,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:20:59,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:20:59,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:20:59,958 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 02:21:00,008 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:21:00,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:21:00,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:21:00,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:21:00,012 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:21:00,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:21:00,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:21:00,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:21:00,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:21:00,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:21:00,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:21:00,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:21:00,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:21:00,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:21:00,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:21:00,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:21:00,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:21:00,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:21:00,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:21:00,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:21:00,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:21:00,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:21:00,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:21:00,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:21:00,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:21:00,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:21:00,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:21:00,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:21:00,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:21:00,019 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:21:00,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:21:00,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:21:00,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:21:00,530 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:21:00,531 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:21:00,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-09-25 02:21:00,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/956e96b31/b6c3b51da39549f6b491e47933f6b1b5/FLAG9c11b5d65 [2020-09-25 02:21:01,186 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:21:01,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-09-25 02:21:01,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/956e96b31/b6c3b51da39549f6b491e47933f6b1b5/FLAG9c11b5d65 [2020-09-25 02:21:01,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/956e96b31/b6c3b51da39549f6b491e47933f6b1b5 [2020-09-25 02:21:01,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:21:01,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:21:01,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:21:01,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:21:01,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:21:01,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:01,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1003e016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01, skipping insertion in model container [2020-09-25 02:21:01,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:01,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:21:01,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:21:01,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:21:01,864 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:21:01,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:21:01,906 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:21:01,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01 WrapperNode [2020-09-25 02:21:01,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:21:01,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:21:01,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:21:01,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:21:01,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:01,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:02,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:02,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:02,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:02,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:02,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (1/1) ... [2020-09-25 02:21:02,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:21:02,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:21:02,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:21:02,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:21:02,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (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 02:21:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:21:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:21:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:21:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:21:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:21:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:21:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:21:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:21:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:21:02,398 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:21:02,399 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:21:02,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:02 BoogieIcfgContainer [2020-09-25 02:21:02,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:21:02,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:21:02,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:21:02,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:21:02,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:01" (1/3) ... [2020-09-25 02:21:02,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e84c56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:02, skipping insertion in model container [2020-09-25 02:21:02,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:01" (2/3) ... [2020-09-25 02:21:02,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e84c56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:02, skipping insertion in model container [2020-09-25 02:21:02,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:02" (3/3) ... [2020-09-25 02:21:02,416 INFO L109 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2020-09-25 02:21:02,430 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:21:02,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:21:02,467 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:21:02,505 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:21:02,505 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:21:02,506 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:21:02,506 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:21:02,506 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:21:02,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:21:02,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:21:02,506 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:21:02,534 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-25 02:21:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 02:21:02,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:02,543 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 02:21:02,543 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:02,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:02,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1562147583, now seen corresponding path program 1 times [2020-09-25 02:21:02,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:02,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412100076] [2020-09-25 02:21:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:02,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:02,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 02:21:02,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 02:21:02,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:21:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:21:02,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:21:02,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:21:03,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:03,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:21:03,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:21:03,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:21:03,029 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 02:21:03,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412100076] [2020-09-25 02:21:03,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:21:03,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:21:03,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706493018] [2020-09-25 02:21:03,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:21:03,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:03,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:21:03,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:21:03,064 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2020-09-25 02:21:03,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:03,160 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2020-09-25 02:21:03,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:21:03,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 02:21:03,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:03,174 INFO L225 Difference]: With dead ends: 105 [2020-09-25 02:21:03,174 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 02:21:03,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 02:21:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 02:21:03,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2020-09-25 02:21:03,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 02:21:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-09-25 02:21:03,229 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 23 [2020-09-25 02:21:03,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:03,230 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-09-25 02:21:03,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:21:03,231 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-09-25 02:21:03,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 02:21:03,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:03,232 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] [2020-09-25 02:21:03,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:21:03,233 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:03,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:03,234 INFO L82 PathProgramCache]: Analyzing trace with hash 42061886, now seen corresponding path program 1 times [2020-09-25 02:21:03,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:03,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875956848] [2020-09-25 02:21:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:03,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:03,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 02:21:03,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:21:03,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-09-25 02:21:03,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:21:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:21:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:21:03,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:21:03,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:03,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:21:03,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:21:03,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:03,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:03,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:03,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:03,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:21:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:21:03,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875956848] [2020-09-25 02:21:03,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:21:03,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 02:21:03,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388188840] [2020-09-25 02:21:03,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:21:03,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:03,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:21:03,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:21:03,898 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2020-09-25 02:21:04,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:04,001 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2020-09-25 02:21:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:21:04,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-09-25 02:21:04,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:04,004 INFO L225 Difference]: With dead ends: 97 [2020-09-25 02:21:04,004 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 02:21:04,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:21:04,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 02:21:04,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 46. [2020-09-25 02:21:04,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 02:21:04,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-09-25 02:21:04,015 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 27 [2020-09-25 02:21:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:04,015 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-09-25 02:21:04,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:21:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-09-25 02:21:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 02:21:04,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:04,017 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:21:04,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:21:04,017 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:04,018 INFO L82 PathProgramCache]: Analyzing trace with hash -2023869189, now seen corresponding path program 2 times [2020-09-25 02:21:04,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:04,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88751810] [2020-09-25 02:21:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:04,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:04,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:04,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:04,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:04,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 02:21:04,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:21:04,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-25 02:21:04,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:21:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:21:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:21:04,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:21:04,723 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 22 [2020-09-25 02:21:04,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:04,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:04,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:04,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:21:04,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:04,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:21:04,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:04,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:04,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:04,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 02:21:04,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88751810] [2020-09-25 02:21:04,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:21:04,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:21:04,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29021353] [2020-09-25 02:21:04,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:21:04,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:04,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:21:04,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:21:04,884 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 8 states. [2020-09-25 02:21:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:07,111 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2020-09-25 02:21:07,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 02:21:07,115 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-09-25 02:21:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:07,116 INFO L225 Difference]: With dead ends: 63 [2020-09-25 02:21:07,116 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:21:07,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:21:07,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:21:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:21:07,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:21:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:21:07,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-09-25 02:21:07,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:07,119 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:21:07,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:21:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:21:07,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:21:07,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:21:07,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:21:09,311 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 19 [2020-09-25 02:21:11,419 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 19 [2020-09-25 02:21:13,539 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 19 [2020-09-25 02:21:13,575 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 02:21:13,575 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:21:13,576 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:21:13,576 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:21:13,576 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:21:13,576 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:21:13,577 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2020-09-25 02:21:13,578 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 02:21:13,578 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-09-25 02:21:13,578 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 02:21:13,578 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed. [2020-09-25 02:21:13,578 INFO L268 CegarLoopResult]: For program point L19-5(line 19) no Hoare annotation was computed. [2020-09-25 02:21:13,579 INFO L264 CegarLoopResult]: At program point L19-6(lines 19 23) the Hoare annotation is: (or (not (= main_~v~0 (let ((.cse0 (div main_~v~0 4))) (+ (* 4294967296 (div (+ main_~v~0 (* .cse0 (- 4))) 4294967296)) (* 4 .cse0))))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 02:21:13,579 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 02:21:13,579 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-09-25 02:21:13,580 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 02:21:13,580 INFO L268 CegarLoopResult]: For program point L20-4(line 20) no Hoare annotation was computed. [2020-09-25 02:21:13,581 INFO L264 CegarLoopResult]: At program point L20-5(lines 20 23) the Hoare annotation is: (or (not (= main_~v~0 (let ((.cse0 (div main_~v~0 4))) (+ (* 4294967296 (div (+ main_~v~0 (* .cse0 (- 4))) 4294967296)) (* 4 .cse0))))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 02:21:13,582 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 02:21:13,582 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-09-25 02:21:13,583 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 02:21:13,583 INFO L268 CegarLoopResult]: For program point L21-4(line 21) no Hoare annotation was computed. [2020-09-25 02:21:13,583 INFO L268 CegarLoopResult]: For program point L21-5(line 21) no Hoare annotation was computed. [2020-09-25 02:21:13,584 INFO L264 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (let ((.cse1 (div main_~v~0 4))) (let ((.cse0 (div (+ main_~v~0 (* .cse1 (- 4))) 4294967296))) (or (<= (+ (* 1073741824 .cse0) .cse1) (+ (* 1073741824 (div main_~v~0 4294967296)) 2)) (not (= main_~v~0 (+ (* .cse0 4294967296) (* .cse1 4))))))) [2020-09-25 02:21:13,584 INFO L264 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: (not (= main_~v~0 (let ((.cse0 (div main_~v~0 4))) (+ (* 4294967296 (div (+ main_~v~0 (* .cse0 (- 4))) 4294967296)) (* 4 .cse0))))) [2020-09-25 02:21:13,584 INFO L268 CegarLoopResult]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2020-09-25 02:21:13,584 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 02:21:13,584 INFO L268 CegarLoopResult]: For program point L17-4(line 17) no Hoare annotation was computed. [2020-09-25 02:21:13,585 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2020-09-25 02:21:13,586 INFO L268 CegarLoopResult]: For program point L17-5(line 17) no Hoare annotation was computed. [2020-09-25 02:21:13,591 INFO L264 CegarLoopResult]: At program point L17-6(lines 17 23) the Hoare annotation is: (or (not (= main_~v~0 (let ((.cse0 (div main_~v~0 4))) (+ (* 4294967296 (div (+ main_~v~0 (* .cse0 (- 4))) 4294967296)) (* 4 .cse0))))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 02:21:13,592 INFO L268 CegarLoopResult]: For program point L17-7(lines 17 23) no Hoare annotation was computed. [2020-09-25 02:21:13,592 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 25) the Hoare annotation is: true [2020-09-25 02:21:13,593 INFO L268 CegarLoopResult]: For program point L22(lines 20 23) no Hoare annotation was computed. [2020-09-25 02:21:13,593 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 02:21:13,593 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 23) no Hoare annotation was computed. [2020-09-25 02:21:13,593 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 02:21:13,593 INFO L268 CegarLoopResult]: For program point L18-4(line 18) no Hoare annotation was computed. [2020-09-25 02:21:13,594 INFO L268 CegarLoopResult]: For program point L18-5(line 18) no Hoare annotation was computed. [2020-09-25 02:21:13,595 INFO L264 CegarLoopResult]: At program point L18-6(lines 18 23) the Hoare annotation is: (or (not (= main_~v~0 (let ((.cse0 (div main_~v~0 4))) (+ (* 4294967296 (div (+ main_~v~0 (* .cse0 (- 4))) 4294967296)) (* 4 .cse0))))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 02:21:13,595 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 02:21:13,595 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 02:21:13,595 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 02:21:13,596 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 02:21:13,596 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 02:21:13,597 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 02:21:13,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:21:13 BoogieIcfgContainer [2020-09-25 02:21:13,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:21:13,660 INFO L168 Benchmark]: Toolchain (without parser) took 12083.94 ms. Allocated memory was 141.6 MB in the beginning and 234.4 MB in the end (delta: 92.8 MB). Free memory was 103.8 MB in the beginning and 105.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:13,662 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:21:13,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.81 ms. Allocated memory is still 141.6 MB. Free memory was 103.1 MB in the beginning and 93.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:13,666 INFO L168 Benchmark]: Boogie Preprocessor took 130.00 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.6 MB in the beginning and 182.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:13,667 INFO L168 Benchmark]: RCFGBuilder took 367.06 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 168.6 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:13,675 INFO L168 Benchmark]: TraceAbstraction took 11249.58 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 167.9 MB in the beginning and 105.2 MB in the end (delta: 62.7 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:13,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 326.81 ms. Allocated memory is still 141.6 MB. Free memory was 103.1 MB in the beginning and 93.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.00 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.6 MB in the beginning and 182.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 367.06 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 168.6 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11249.58 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 167.9 MB in the beginning and 105.2 MB in the end (delta: 62.7 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 17]: Loop Invariant Derived loop invariant: !(v == 4294967296 * ((v + v / 4 * -4) / 4294967296) + 4 * (v / 4)) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: !(v == 4294967296 * ((v + v / 4 * -4) / 4294967296) + 4 * (v / 4)) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !(v == 4294967296 * ((v + v / 4 * -4) / 4294967296) + 4 * (v / 4)) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1073741824 * ((v + v / 4 * -4) / 4294967296) + v / 4 <= 1073741824 * (v / 4294967296) + 2 || !(v == (v + v / 4 * -4) / 4294967296 * 4294967296 + v / 4 * 4) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: !(v == 4294967296 * ((v + v / 4 * -4) / 4294967296) + 4 * (v / 4)) || v <= 4294967296 * (v / 4294967296) + 9 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 146 SDtfs, 122 SDslu, 388 SDs, 0 SdLazy, 56 SolverSat, 10 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 25 NumberOfFragments, 189 HoareAnnotationTreeSize, 13 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 6.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 6886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/7 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...