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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 16:30:21,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 16:30:21,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 16:30:21,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 16:30:21,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 16:30:21,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 16:30:21,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 16:30:21,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 16:30:21,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 16:30:21,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 16:30:21,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 16:30:21,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 16:30:21,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 16:30:21,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 16:30:21,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 16:30:21,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 16:30:21,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 16:30:21,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 16:30:21,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 16:30:21,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 16:30:21,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 16:30:21,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 16:30:21,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 16:30:21,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 16:30:21,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 16:30:21,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 16:30:21,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 16:30:21,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 16:30:21,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 16:30:21,751 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 16:30:21,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 16:30:21,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 16:30:21,752 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 16:30:21,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 16:30:21,752 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 16:30:21,753 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 16:30:21,753 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 16:30:21,753 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 16:30:21,753 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 16:30:21,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 16:30:21,754 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 16:30:21,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 16:30:21,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 16:30:21,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 16:30:21,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 16:30:21,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 16:30:21,755 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 16:30:21,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 16:30:21,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 16:30:21,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 16:30:21,756 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 16:30:21,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 16:30:21,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 16:30:21,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 16:30:21,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 16:30:21,757 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 16:30:21,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 16:30:21,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 16:30:21,758 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 16:30:21,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 16:30:21,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 16:30:21,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 16:30:21,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 16:30:21,809 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 16:30:21,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c [2019-10-02 16:30:21,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafc5a137/1104846379374d8cb311ea383ea96f24/FLAG3428b0300 [2019-10-02 16:30:22,378 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 16:30:22,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u.c [2019-10-02 16:30:22,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafc5a137/1104846379374d8cb311ea383ea96f24/FLAG3428b0300 [2019-10-02 16:30:22,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafc5a137/1104846379374d8cb311ea383ea96f24 [2019-10-02 16:30:22,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 16:30:22,762 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 16:30:22,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:22,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 16:30:22,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 16:30:22,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3686b925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22, skipping insertion in model container [2019-10-02 16:30:22,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,780 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 16:30:22,796 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 16:30:23,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:23,004 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 16:30:23,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:23,142 INFO L192 MainTranslator]: Completed translation [2019-10-02 16:30:23,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23 WrapperNode [2019-10-02 16:30:23,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:23,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 16:30:23,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 16:30:23,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 16:30:23,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... [2019-10-02 16:30:23,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... [2019-10-02 16:30:23,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... [2019-10-02 16:30:23,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... [2019-10-02 16:30:23,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... [2019-10-02 16:30:23,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... [2019-10-02 16:30:23,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... [2019-10-02 16:30:23,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 16:30:23,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 16:30:23,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 16:30:23,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 16:30:23,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-02 16:30:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 16:30:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 16:30:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 16:30:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 16:30:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 16:30:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 16:30:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 16:30:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 16:30:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 16:30:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 16:30:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 16:30:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 16:30:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 16:30:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 16:30:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 16:30:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 16:30:23,499 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 16:30:23,500 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 16:30:23,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:23 BoogieIcfgContainer [2019-10-02 16:30:23,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 16:30:23,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 16:30:23,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 16:30:23,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 16:30:23,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:30:22" (1/3) ... [2019-10-02 16:30:23,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a699fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:23, skipping insertion in model container [2019-10-02 16:30:23,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:23" (2/3) ... [2019-10-02 16:30:23,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a699fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:23, skipping insertion in model container [2019-10-02 16:30:23,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:23" (3/3) ... [2019-10-02 16:30:23,515 INFO L109 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u.c [2019-10-02 16:30:23,529 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 16:30:23,541 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 16:30:23,562 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 16:30:23,610 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 16:30:23,611 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 16:30:23,611 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 16:30:23,611 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 16:30:23,611 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 16:30:23,611 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 16:30:23,612 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 16:30:23,612 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 16:30:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-02 16:30:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-02 16:30:23,643 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:23,644 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:23,646 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:23,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:23,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1832694891, now seen corresponding path program 1 times [2019-10-02 16:30:23,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:23,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,711 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:23,751 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 16:30:23,751 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 16:30:23,751 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-10-02 16:30:23,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,780 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 16:30:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:23,817 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-10-02 16:30:23,819 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-02 16:30:23,820 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 16:30:23,820 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 16:30:23,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,848 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-10-02 16:30:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:23,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 16:30:23,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 16:30:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:23,969 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-02 16:30:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 16:30:24,018 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:24,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-10-02 16:30:24,019 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:24,024 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 16:30:24,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 16:30:24,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 16:30:24,041 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2019-10-02 16:30:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:24,173 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2019-10-02 16:30:24,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 16:30:24,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-02 16:30:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:24,195 INFO L225 Difference]: With dead ends: 42 [2019-10-02 16:30:24,196 INFO L226 Difference]: Without dead ends: 29 [2019-10-02 16:30:24,198 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-02 16:30:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-02 16:30:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2019-10-02 16:30:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-02 16:30:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-10-02 16:30:24,238 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-10-02 16:30:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:24,238 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-10-02 16:30:24,238 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 16:30:24,239 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-10-02 16:30:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-02 16:30:24,240 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:24,241 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:24,241 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:24,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:24,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1374604441, now seen corresponding path program 1 times [2019-10-02 16:30:24,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:24,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:24,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:24,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:24,244 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:24,252 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 16:30:24,252 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 16:30:24,252 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-10-02 16:30:24,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:24,273 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 16:30:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:24,289 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2019-10-02 16:30:24,291 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [12], [14], [21], [27], [31], [40], [49], [61], [64], [66], [72], [73], [74], [76] [2019-10-02 16:30:24,326 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 16:30:24,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 16:30:24,391 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 16:30:24,393 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 17 root evaluator evaluations with a maximum evaluation depth of 0. Performed 17 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 25 variables. [2019-10-02 16:30:24,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:24,397 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 16:30:24,430 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 16:30:24,431 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 16:30:24,433 INFO L420 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-10-02 16:30:24,433 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 16:30:24,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:24,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 16:30:24,434 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:24,435 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:30:24,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:30:24,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:24,436 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 2 states. [2019-10-02 16:30:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:24,437 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 16:30:24,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:30:24,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-02 16:30:24,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:24,438 INFO L225 Difference]: With dead ends: 6 [2019-10-02 16:30:24,438 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 16:30:24,439 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 16:30:24,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 16:30:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 16:30:24,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 16:30:24,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-02 16:30:24,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:24,441 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 16:30:24,441 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:30:24,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 16:30:24,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 16:30:24,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 04:30:24 BoogieIcfgContainer [2019-10-02 16:30:24,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 16:30:24,450 INFO L168 Benchmark]: Toolchain (without parser) took 1687.01 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 85.0 MB in the beginning and 98.6 MB in the end (delta: -13.6 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,451 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.96 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.6 MB in the beginning and 176.5 MB in the end (delta: -91.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,453 INFO L168 Benchmark]: Boogie Preprocessor took 35.93 ms. Allocated memory is still 198.2 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,454 INFO L168 Benchmark]: RCFGBuilder took 322.59 ms. Allocated memory is still 198.2 MB. Free memory was 174.2 MB in the beginning and 159.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,455 INFO L168 Benchmark]: TraceAbstraction took 942.37 ms. Allocated memory is still 198.2 MB. Free memory was 159.0 MB in the beginning and 98.6 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,460 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 379.96 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.6 MB in the beginning and 176.5 MB in the end (delta: -91.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.93 ms. Allocated memory is still 198.2 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 322.59 ms. Allocated memory is still 198.2 MB. Free memory was 174.2 MB in the beginning and 159.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 942.37 ms. Allocated memory is still 198.2 MB. Free memory was 159.0 MB in the beginning and 98.6 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 23 SDslu, 42 SDs, 0 SdLazy, 27 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.859375 AbsIntWeakeningRatio, 1.125 AbsIntAvgWeakeningVarsNumRemoved, 0.375 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 546 SizeOfPredicates, 4 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...