/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:22:22,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:22:22,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:22:22,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:22:22,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:22:22,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:22:22,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:22:22,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:22:22,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:22:22,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:22:22,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:22:22,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:22:22,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:22:22,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:22:22,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:22:22,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:22:22,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:22:22,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:22:22,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:22:22,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:22:22,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:22:22,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:22:22,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:22:22,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:22:22,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:22:22,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:22:22,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:22:22,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:22:22,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:22:22,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-24 17:22:22,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:22:22,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:22:22,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:22:22,827 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 [2020-09-24 17:22:22,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:22:22,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:22:22,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:22:22,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:22:22,856 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:22:22,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:22:22,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:22:22,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:22:22,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:22:22,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:22:22,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:22:22,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:22:22,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:22:22,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:22:22,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:22:22,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:22:22,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:22:22,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:22:22,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:22:22,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:22:22,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:22:22,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:22:22,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:22:22,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:22:22,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:22:22,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:22:22,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:22:22,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:22:22,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:22:22,862 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;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;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;log-additional-information=true; [2020-09-24 17:22:23,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:22:23,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:22:23,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:22:23,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:22:23,376 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:22:23,377 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008.i [2020-09-24 17:22:23,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/266ea02d5/5fbf9f8ffe4746bbb4d6092ca357504d/FLAG2425a8e5c [2020-09-24 17:22:24,001 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:22:24,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/hhk2008.i [2020-09-24 17:22:24,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/266ea02d5/5fbf9f8ffe4746bbb4d6092ca357504d/FLAG2425a8e5c [2020-09-24 17:22:24,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/266ea02d5/5fbf9f8ffe4746bbb4d6092ca357504d [2020-09-24 17:22:24,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:22:24,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:22:24,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:22:24,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:22:24,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:22:24,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21af3704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24, skipping insertion in model container [2020-09-24 17:22:24,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:22:24,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:22:24,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:22:24,611 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:22:24,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:22:24,651 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:22:24,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24 WrapperNode [2020-09-24 17:22:24,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:22:24,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:22:24,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:22:24,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:22:24,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (1/1) ... [2020-09-24 17:22:24,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:22:24,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:22:24,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:22:24,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:22:24,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (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 [2020-09-24 17:22:24,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:22:24,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:22:24,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:22:24,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 17:22:24,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:22:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:22:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:22:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:22:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:22:24,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:22:24,857 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:22:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:22:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:22:25,088 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:22:25,089 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:22:25,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:22:25 BoogieIcfgContainer [2020-09-24 17:22:25,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:22:25,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:22:25,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:22:25,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:22:25,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:22:24" (1/3) ... [2020-09-24 17:22:25,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb4f62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:22:25, skipping insertion in model container [2020-09-24 17:22:25,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:24" (2/3) ... [2020-09-24 17:22:25,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb4f62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:22:25, skipping insertion in model container [2020-09-24 17:22:25,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:22:25" (3/3) ... [2020-09-24 17:22:25,106 INFO L109 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2020-09-24 17:22:25,122 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:22:25,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:22:25,186 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:22:25,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:22:25,245 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:22:25,246 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:22:25,246 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:22:25,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:22:25,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:22:25,246 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:22:25,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:22:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-24 17:22:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 17:22:25,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:25,277 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] [2020-09-24 17:22:25,278 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:22:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:25,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1378758603, now seen corresponding path program 1 times [2020-09-24 17:22:25,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:25,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295693077] [2020-09-24 17:22:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:25,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:25,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:25,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 17:22:25,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:25,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-24 17:22:25,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:22:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 17:22:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:22:25,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:22:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:22:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:26,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:26,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:26,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:22:26,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:22:26,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:26,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:22:26,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:22:26,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:22:26,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:22:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:22:26,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295693077] [2020-09-24 17:22:26,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:22:26,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:22:26,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123380311] [2020-09-24 17:22:26,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:22:26,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:22:26,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:22:26,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:22:26,063 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 8 states. [2020-09-24 17:22:26,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:22:26,309 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-24 17:22:26,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:22:26,311 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-09-24 17:22:26,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:22:26,324 INFO L225 Difference]: With dead ends: 58 [2020-09-24 17:22:26,324 INFO L226 Difference]: Without dead ends: 27 [2020-09-24 17:22:26,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:22:26,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-24 17:22:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-09-24 17:22:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-24 17:22:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2020-09-24 17:22:26,383 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 21 [2020-09-24 17:22:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:22:26,384 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2020-09-24 17:22:26,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:22:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2020-09-24 17:22:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 17:22:26,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:26,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:22:26,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:22:26,390 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:22:26,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:26,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1865209823, now seen corresponding path program 1 times [2020-09-24 17:22:26,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:26,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794169767] [2020-09-24 17:22:26,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:26,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:26,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:26,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 17:22:26,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:26,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-24 17:22:26,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:26,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:22:26,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 17:22:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:22:26,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:22:26,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:22:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:26,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:26,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:26,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:22:26,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:26,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:22:26,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:26,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:22:26,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:22:26,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:22:26,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:22:26,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794169767] [2020-09-24 17:22:26,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:22:26,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 17:22:26,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575775981] [2020-09-24 17:22:26,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:22:26,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:22:26,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:22:26,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:22:26,851 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 10 states. [2020-09-24 17:22:26,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:22:26,989 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-09-24 17:22:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:22:26,990 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-09-24 17:22:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:22:26,991 INFO L225 Difference]: With dead ends: 34 [2020-09-24 17:22:26,991 INFO L226 Difference]: Without dead ends: 29 [2020-09-24 17:22:26,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:22:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-24 17:22:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-09-24 17:22:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 17:22:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-09-24 17:22:26,999 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 24 [2020-09-24 17:22:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:22:27,000 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-09-24 17:22:27,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:22:27,000 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-09-24 17:22:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 17:22:27,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:27,002 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:22:27,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:22:27,002 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:22:27,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:27,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1781119157, now seen corresponding path program 2 times [2020-09-24 17:22:27,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:27,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002660493] [2020-09-24 17:22:27,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:27,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:27,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 17:22:27,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-24 17:22:27,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:27,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:22:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 17:22:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:22:27,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:27,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:22:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:27,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:27,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:27,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:22:27,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:22:27,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:22:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:22:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:22:27,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:22:27,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002660493] [2020-09-24 17:22:27,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:22:27,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 17:22:27,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183602100] [2020-09-24 17:22:27,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 17:22:27,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:22:27,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 17:22:27,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:22:27,389 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 12 states. [2020-09-24 17:22:27,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:22:27,615 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-09-24 17:22:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:22:27,615 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2020-09-24 17:22:27,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:22:27,616 INFO L225 Difference]: With dead ends: 28 [2020-09-24 17:22:27,616 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:22:27,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-09-24 17:22:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:22:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:22:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:22:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:22:27,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-09-24 17:22:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:22:27,620 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:22:27,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 17:22:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:22:27,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:22:27,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:22:27,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:22:27,770 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 17:22:27,770 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:22:27,770 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:22:27,770 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 17:22:27,771 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:22:27,771 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:22:27,771 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 17:22:27,771 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 17:22:27,771 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 17:22:27,772 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 17:22:27,772 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 17:22:27,772 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 17:22:27,772 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2020-09-24 17:22:27,772 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-24 17:22:27,772 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 17:22:27,773 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 24) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= 0 main_~b~0) (<= .cse1 .cse0) (<= main_~res~0 .cse0))) [2020-09-24 17:22:27,774 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 24) the Hoare annotation is: (let ((.cse0 (+ main_~a~0 main_~b~0))) (and (<= 0 main_~b~0) (<= main_~res~0 .cse0) (< .cse0 (+ main_~res~0 1)))) [2020-09-24 17:22:27,774 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 17:22:27,774 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 17:22:27,775 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 17:22:27,775 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 17:22:27,775 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 17:22:27,775 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2020-09-24 17:22:27,775 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2020-09-24 17:22:27,776 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 17:22:27,776 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 17:22:27,777 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 17:22:27,777 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 17:22:27,777 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 17:22:27,777 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 17:22:27,777 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 17:22:27,777 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 17:22:27,778 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 17:22:27,778 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 17:22:27,778 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 17:22:27,778 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 17:22:27,779 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 17:22:27,779 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 17:22:27,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:22:27 BoogieIcfgContainer [2020-09-24 17:22:27,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:22:27,814 INFO L168 Benchmark]: Toolchain (without parser) took 3468.77 ms. Allocated memory was 141.0 MB in the beginning and 234.4 MB in the end (delta: 93.3 MB). Free memory was 104.7 MB in the beginning and 92.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:22:27,816 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 17:22:27,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.68 ms. Allocated memory is still 141.0 MB. Free memory was 104.3 MB in the beginning and 94.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-24 17:22:27,819 INFO L168 Benchmark]: Boogie Preprocessor took 122.23 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.6 MB in the beginning and 183.9 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:22:27,821 INFO L168 Benchmark]: RCFGBuilder took 320.45 ms. Allocated memory is still 203.9 MB. Free memory was 183.9 MB in the beginning and 169.2 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:22:27,828 INFO L168 Benchmark]: TraceAbstraction took 2710.22 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 168.5 MB in the beginning and 92.1 MB in the end (delta: 76.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:22:27,839 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.68 ms. Allocated memory is still 141.0 MB. Free memory was 104.3 MB in the beginning and 94.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.23 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.6 MB in the beginning and 183.9 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 320.45 ms. Allocated memory is still 203.9 MB. Free memory was 183.9 MB in the beginning and 169.2 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2710.22 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 168.5 MB in the beginning and 92.1 MB in the end (delta: 76.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 21]: Loop Invariant Derived loop invariant: ((a + b <= res + cnt && 0 <= b) && res + cnt <= a + b) && res <= a + b - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 43 SDslu, 298 SDs, 0 SdLazy, 213 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 44 HoareAnnotationTreeSize, 10 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 7448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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...