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/nla-digbench/fermat1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:26:15,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:26:15,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:26:16,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:26:16,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:26:16,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:26:16,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:26:16,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:26:16,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:26:16,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:26:16,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:26:16,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:26:16,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:26:16,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:26:16,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:26:16,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:26:16,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:26:16,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:26:16,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:26:16,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:26:16,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:26:16,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:26:16,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:26:16,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:26:16,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:26:16,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:26:16,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:26:16,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:26:16,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:26:16,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:26:16,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:26:16,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:26:16,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2019-09-20 13:26:16,046 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 [2019-09-20 13:26:16,068 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:26:16,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:26:16,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:26:16,070 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:26:16,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:26:16,071 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:26:16,071 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:26:16,071 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:26:16,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:26:16,071 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:26:16,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:26:16,073 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:26:16,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:26:16,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:26:16,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:26:16,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:26:16,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:26:16,075 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:26:16,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:26:16,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:26:16,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:26:16,076 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:26:16,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:26:16,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:26:16,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:26:16,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:26:16,077 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:26:16,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:26:16,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:26:16,078 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:26:16,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:26:16,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:26:16,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:26:16,141 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:26:16,142 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:26:16,142 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-20 13:26:16,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0a6861b9/88ad7d83e2f74ae39c34014230962717/FLAG50ca4ea09 [2019-09-20 13:26:16,636 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:26:16,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-09-20 13:26:16,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0a6861b9/88ad7d83e2f74ae39c34014230962717/FLAG50ca4ea09 [2019-09-20 13:26:17,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0a6861b9/88ad7d83e2f74ae39c34014230962717 [2019-09-20 13:26:17,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:26:17,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:26:17,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:26:17,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:26:17,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:26:17,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521b6e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17, skipping insertion in model container [2019-09-20 13:26:17,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:26:17,073 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:26:17,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:26:17,286 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:26:17,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:26:17,408 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:26:17,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17 WrapperNode [2019-09-20 13:26:17,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:26:17,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:26:17,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:26:17,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:26:17,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (1/1) ... [2019-09-20 13:26:17,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:26:17,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:26:17,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:26:17,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:26:17,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (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 [2019-09-20 13:26:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:26:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:26:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:26:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:26:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:26:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-20 13:26:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:26:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:26:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:26:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:26:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:26:17,720 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:26:17,720 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-20 13:26:17,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:17 BoogieIcfgContainer [2019-09-20 13:26:17,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:26:17,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:26:17,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:26:17,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:26:17,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:26:17" (1/3) ... [2019-09-20 13:26:17,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d839b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:26:17, skipping insertion in model container [2019-09-20 13:26:17,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:17" (2/3) ... [2019-09-20 13:26:17,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d839b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:26:17, skipping insertion in model container [2019-09-20 13:26:17,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:17" (3/3) ... [2019-09-20 13:26:17,740 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-09-20 13:26:17,754 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:26:17,763 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:26:17,803 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:26:17,840 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:26:17,840 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:26:17,840 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:26:17,841 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:26:17,841 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:26:17,841 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:26:17,841 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:26:17,842 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:26:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-09-20 13:26:17,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 13:26:17,871 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:26:17,872 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:26:17,875 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:26:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:17,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1029581307, now seen corresponding path program 1 times [2019-09-20 13:26:17,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:26:17,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:17,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:17,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:17,951 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:26:17,975 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:26:17,975 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:26:17,976 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) [2019-09-20 13:26:17,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:17,999 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 [2019-09-20 13:26:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:18,022 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-20 13:26:18,024 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:26:18,024 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:18,025 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 [2019-09-20 13:26:18,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:18,043 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:26:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:18,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2019-09-20 13:26:18,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:18,086 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:18,109 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:26:18,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-09-20 13:26:18,110 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:26:18,114 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:26:18,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:26:18,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:26:18,132 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-09-20 13:26:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:18,153 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2019-09-20 13:26:18,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:26:18,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-20 13:26:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:18,165 INFO L225 Difference]: With dead ends: 26 [2019-09-20 13:26:18,166 INFO L226 Difference]: Without dead ends: 21 [2019-09-20 13:26:18,168 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:26:18,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-20 13:26:18,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-20 13:26:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-20 13:26:18,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-09-20 13:26:18,210 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 10 [2019-09-20 13:26:18,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:18,211 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-09-20 13:26:18,211 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:26:18,211 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-09-20 13:26:18,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 13:26:18,212 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:26:18,212 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:26:18,213 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:26:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:18,213 INFO L82 PathProgramCache]: Analyzing trace with hash 989691158, now seen corresponding path program 1 times [2019-09-20 13:26:18,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:26:18,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:18,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:18,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:18,216 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:26:18,221 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:26:18,221 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:26:18,221 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 13:26:18,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:18,241 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-20 13:26:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:18,257 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-20 13:26:18,258 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:26:18,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:18,258 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:26:18,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:18,275 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:26:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:18,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-20 13:26:18,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:18,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:26:24,239 WARN L838 $PredicateComparison]: unable to prove that (or (= |c___VERIFIER_assert_#in~cond| 1) (and (= |c___VERIFIER_assert_#in~cond| 0) (exists ((v_main_~u~0_BEFORE_CALL_1 Int) (v_main_~A~0_BEFORE_CALL_1 Int)) (let ((.cse0 (div (+ (* (- 1) v_main_~u~0_BEFORE_CALL_1) 1) (- 2)))) (and (= 0 (mod (+ v_main_~u~0_BEFORE_CALL_1 1) (- 2))) (= (mod v_main_~A~0_BEFORE_CALL_1 2) 1) (not (= (+ (+ (+ (- 1) (* v_main_~u~0_BEFORE_CALL_1 v_main_~u~0_BEFORE_CALL_1)) (- (* 2 v_main_~u~0_BEFORE_CALL_1))) 2) (+ (* 4 v_main_~A~0_BEFORE_CALL_1) (* (+ (* .cse0 .cse0) (- v_main_~A~0_BEFORE_CALL_1)) 4)))) (< (let ((.cse1 (+ .cse0 (- 1)))) (* .cse1 .cse1)) v_main_~A~0_BEFORE_CALL_1)))))) is different from false [2019-09-20 13:26:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:24,420 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:26,508 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:26:26,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-09-20 13:26:26,509 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:26:26,510 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:26:26,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:26:26,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=30, Unknown=2, NotChecked=10, Total=56 [2019-09-20 13:26:26,512 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 5 states. [2019-09-20 13:26:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:28,610 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2019-09-20 13:26:28,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:26:28,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-20 13:26:28,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:28,613 INFO L225 Difference]: With dead ends: 35 [2019-09-20 13:26:28,613 INFO L226 Difference]: Without dead ends: 35 [2019-09-20 13:26:28,614 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=14, Invalid=30, Unknown=2, NotChecked=10, Total=56 [2019-09-20 13:26:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-20 13:26:28,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-09-20 13:26:28,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-20 13:26:28,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-09-20 13:26:28,624 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 10 [2019-09-20 13:26:28,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:28,625 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-09-20 13:26:28,625 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:26:28,625 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-09-20 13:26:28,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-20 13:26:28,629 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:26:28,630 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:26:28,630 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:26:28,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:28,631 INFO L82 PathProgramCache]: Analyzing trace with hash -732641273, now seen corresponding path program 1 times [2019-09-20 13:26:28,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:26:28,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:28,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:28,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:28,633 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:26:28,636 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:26:28,636 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:26:28,637 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-20 13:26:28,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:28,659 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 13:26:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:28,677 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2019-09-20 13:26:28,679 INFO L207 CegarAbsIntRunner]: [0], [4], [13], [17], [61], [64], [66], [69], [71], [72], [73], [74], [76], [77], [82] [2019-09-20 13:26:28,717 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:26:28,717 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:26:28,831 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:26:30,125 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:26:30,130 INFO L272 AbstractInterpreter]: Visited 15 different actions 20 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 14. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Never found a fixpoint. Largest state had 7 variables. [2019-09-20 13:26:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:30,144 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-20 13:26:30,144 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:30,144 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:26:30,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:30,175 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:26:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:30,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-20 13:26:30,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:30,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:26:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:30,421 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:30,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:26:30,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:26:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:30,573 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:26:30,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2019-09-20 13:26:30,573 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-20 13:26:30,574 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-20 13:26:30,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-20 13:26:30,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:26:30,575 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 13 states. [2019-09-20 13:26:31,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:31,103 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2019-09-20 13:26:31,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:26:31,106 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2019-09-20 13:26:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:31,106 INFO L225 Difference]: With dead ends: 32 [2019-09-20 13:26:31,107 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:26:31,108 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2019-09-20 13:26:31,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:26:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:26:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:26:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:26:31,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-09-20 13:26:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:31,109 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:26:31,109 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-20 13:26:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:26:31,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:26:31,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:26:31 BoogieIcfgContainer [2019-09-20 13:26:31,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:26:31,120 INFO L168 Benchmark]: Toolchain (without parser) took 14082.14 ms. Allocated memory was 133.2 MB in the beginning and 259.5 MB in the end (delta: 126.4 MB). Free memory was 88.9 MB in the beginning and 100.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 115.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:31,121 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 133.2 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:26:31,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.26 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.4 MB in the beginning and 176.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:31,126 INFO L168 Benchmark]: Boogie Preprocessor took 34.37 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 174.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:31,127 INFO L168 Benchmark]: RCFGBuilder took 278.36 ms. Allocated memory is still 199.8 MB. Free memory was 174.7 MB in the beginning and 162.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:31,129 INFO L168 Benchmark]: TraceAbstraction took 13392.34 ms. Allocated memory was 199.8 MB in the beginning and 259.5 MB in the end (delta: 59.8 MB). Free memory was 161.3 MB in the beginning and 100.2 MB in the end (delta: 61.1 MB). Peak memory consumption was 120.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:31,139 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 133.2 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 372.26 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.4 MB in the beginning and 176.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.37 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 174.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 278.36 ms. Allocated memory is still 199.8 MB. Free memory was 174.7 MB in the beginning and 162.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13392.34 ms. Allocated memory was 199.8 MB in the beginning and 259.5 MB in the end (delta: 59.8 MB). Free memory was 161.3 MB in the beginning and 100.2 MB in the end (delta: 61.1 MB). Peak memory consumption was 120.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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, 13.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 26 SDslu, 121 SDs, 0 SdLazy, 71 SolverSat, 11 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 5 QuantifiedInterpolants, 5406 SizeOfPredicates, 11 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...