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/loops/matrix-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:25:02,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:25:02,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:25:02,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:25:02,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:25:02,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:25:02,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:25:02,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:25:02,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:25:02,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:25:02,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:25:02,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:25:02,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:25:02,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:25:02,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:25:02,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:25:02,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:25:02,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:25:02,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:25:02,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:25:02,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:25:02,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:25:02,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:25:02,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:25:02,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:25:02,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:25:02,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:25:02,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:25:02,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:25:02,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:25:02,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:25:02,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:25:02,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:25:02,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:25:02,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:25:02,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:25:02,880 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 13:25:02,895 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:25:02,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:25:02,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:25:02,896 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:25:02,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:25:02,897 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:25:02,897 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:25:02,897 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:25:02,897 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:25:02,897 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:25:02,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:25:02,898 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:25:02,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:25:02,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:25:02,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:25:02,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:25:02,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:25:02,899 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:25:02,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:25:02,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:25:02,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:25:02,900 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:25:02,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:25:02,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:25:02,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:25:02,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:25:02,901 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:25:02,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:25:02,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:25:02,902 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:25:02,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:25:02,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:25:02,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:25:02,954 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:25:02,955 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:25:02,956 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-1.c [2019-09-20 13:25:03,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ec5ad7e/d00cd81fe11b42b4beb3dad3653efe44/FLAG7f7c88ea7 [2019-09-20 13:25:03,421 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:25:03,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-1.c [2019-09-20 13:25:03,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ec5ad7e/d00cd81fe11b42b4beb3dad3653efe44/FLAG7f7c88ea7 [2019-09-20 13:25:03,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ec5ad7e/d00cd81fe11b42b4beb3dad3653efe44 [2019-09-20 13:25:03,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:25:03,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:25:03,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:03,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:25:03,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:25:03,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:03" (1/1) ... [2019-09-20 13:25:03,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65342265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:03, skipping insertion in model container [2019-09-20 13:25:03,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:03" (1/1) ... [2019-09-20 13:25:03,861 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:25:03,877 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:25:04,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:04,106 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:25:04,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:04,254 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:25:04,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04 WrapperNode [2019-09-20 13:25:04,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:04,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:25:04,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:25:04,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:25:04,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (1/1) ... [2019-09-20 13:25:04,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (1/1) ... [2019-09-20 13:25:04,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (1/1) ... [2019-09-20 13:25:04,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (1/1) ... [2019-09-20 13:25:04,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (1/1) ... [2019-09-20 13:25:04,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (1/1) ... [2019-09-20 13:25:04,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (1/1) ... [2019-09-20 13:25:04,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:25:04,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:25:04,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:25:04,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:25:04,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (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 13:25:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:25:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:25:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:25:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:25:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:25:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:25:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:25:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:25:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:25:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:25:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:25:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:25:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:25:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:25:04,625 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:25:04,631 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 13:25:04,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:04 BoogieIcfgContainer [2019-09-20 13:25:04,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:25:04,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:25:04,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:25:04,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:25:04,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:03" (1/3) ... [2019-09-20 13:25:04,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9138bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:04, skipping insertion in model container [2019-09-20 13:25:04,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:04" (2/3) ... [2019-09-20 13:25:04,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9138bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:04, skipping insertion in model container [2019-09-20 13:25:04,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:04" (3/3) ... [2019-09-20 13:25:04,655 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2019-09-20 13:25:04,675 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:25:04,691 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:25:04,724 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:25:04,748 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:25:04,749 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:25:04,749 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:25:04,749 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:25:04,749 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:25:04,749 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:25:04,749 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:25:04,750 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:25:04,764 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-09-20 13:25:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 13:25:04,774 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:04,775 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:04,777 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:04,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:04,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1330517862, now seen corresponding path program 1 times [2019-09-20 13:25:04,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:04,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:04,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:04,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:04,826 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:04,858 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:25:04,858 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:25:04,858 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 13:25:04,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:04,887 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-20 13:25:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:04,910 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-20 13:25:04,913 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:25:04,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:25:04,913 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 13:25:04,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:04,933 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:25:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:04,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2019-09-20 13:25:04,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:25:04,992 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 13:25:04,992 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:25:05,005 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 13:25:05,010 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:05,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-09-20 13:25:05,010 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:05,015 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:25:05,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:25:05,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:25:05,033 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-09-20 13:25:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:05,050 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-09-20 13:25:05,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:25:05,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-09-20 13:25:05,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:05,061 INFO L225 Difference]: With dead ends: 24 [2019-09-20 13:25:05,061 INFO L226 Difference]: Without dead ends: 17 [2019-09-20 13:25:05,063 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 13:25:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-09-20 13:25:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-09-20 13:25:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-09-20 13:25:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-09-20 13:25:05,098 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-09-20 13:25:05,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:05,099 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-09-20 13:25:05,099 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:25:05,099 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-09-20 13:25:05,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 13:25:05,100 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:05,100 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:05,101 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:05,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:05,101 INFO L82 PathProgramCache]: Analyzing trace with hash 672047389, now seen corresponding path program 1 times [2019-09-20 13:25:05,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:05,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:05,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:05,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:05,104 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:05,112 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:25:05,112 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:25:05,113 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 13:25:05,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:05,132 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-20 13:25:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:05,161 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-20 13:25:05,161 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:25:05,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:25:05,161 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) [2019-09-20 13:25:05,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:05,197 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:25:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:05,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-20 13:25:05,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:25:05,262 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 13:25:05,263 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:25:05,292 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 13:25:05,300 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:05,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-09-20 13:25:05,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:05,302 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:25:05,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:25:05,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:25:05,302 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-09-20 13:25:05,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:05,348 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-09-20 13:25:05,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:25:05,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-09-20 13:25:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:05,351 INFO L225 Difference]: With dead ends: 22 [2019-09-20 13:25:05,351 INFO L226 Difference]: Without dead ends: 22 [2019-09-20 13:25:05,352 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:25:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-20 13:25:05,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-09-20 13:25:05,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-20 13:25:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-09-20 13:25:05,359 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2019-09-20 13:25:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:05,359 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-09-20 13:25:05,365 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:25:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-09-20 13:25:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:25:05,366 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:05,367 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:05,367 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:05,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash -830834987, now seen corresponding path program 1 times [2019-09-20 13:25:05,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:05,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:05,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:05,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:05,371 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:05,384 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 13:25:05,385 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 13:25:05,385 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 13:25:05,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:05,412 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-20 13:25:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:05,434 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2019-09-20 13:25:05,437 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [19], [32], [36], [40], [43], [45], [51], [52], [53], [55] [2019-09-20 13:25:05,466 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:25:05,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:25:05,527 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:25:05,528 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 22 variables. [2019-09-20 13:25:05,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:05,532 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:25:05,562 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-20 13:25:05,562 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:25:05,566 INFO L420 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2019-09-20 13:25:05,566 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:25:05,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:05,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:25:05,567 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:05,568 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:25:05,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:25:05,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:25:05,568 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 2 states. [2019-09-20 13:25:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:05,569 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-20 13:25:05,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:25:05,570 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-09-20 13:25:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:05,570 INFO L225 Difference]: With dead ends: 6 [2019-09-20 13:25:05,570 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:25:05,571 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 13:25:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:25:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:25:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:25:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:25:05,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-09-20 13:25:05,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:05,572 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:25:05,572 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:25:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:25:05,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:25:05,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:05 BoogieIcfgContainer [2019-09-20 13:25:05,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:25:05,580 INFO L168 Benchmark]: Toolchain (without parser) took 1734.13 ms. Allocated memory was 136.8 MB in the beginning and 197.1 MB in the end (delta: 60.3 MB). Free memory was 84.5 MB in the beginning and 90.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:05,581 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 102.9 MB in the beginning and 102.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:25:05,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.25 ms. Allocated memory was 136.8 MB in the beginning and 197.1 MB in the end (delta: 60.3 MB). Free memory was 84.3 MB in the beginning and 174.9 MB in the end (delta: -90.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:05,583 INFO L168 Benchmark]: Boogie Preprocessor took 68.87 ms. Allocated memory is still 197.1 MB. Free memory was 174.9 MB in the beginning and 173.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:05,584 INFO L168 Benchmark]: RCFGBuilder took 311.52 ms. Allocated memory is still 197.1 MB. Free memory was 173.2 MB in the beginning and 157.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:05,585 INFO L168 Benchmark]: TraceAbstraction took 939.99 ms. Allocated memory is still 197.1 MB. Free memory was 157.5 MB in the beginning and 90.4 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:05,588 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 102.9 MB in the beginning and 102.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 409.25 ms. Allocated memory was 136.8 MB in the beginning and 197.1 MB in the end (delta: 60.3 MB). Free memory was 84.3 MB in the beginning and 174.9 MB in the end (delta: -90.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.87 ms. Allocated memory is still 197.1 MB. Free memory was 174.9 MB in the beginning and 173.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.52 ms. Allocated memory is still 197.1 MB. Free memory was 173.2 MB in the beginning and 157.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 939.99 ms. Allocated memory is still 197.1 MB. Free memory was 157.5 MB in the beginning and 90.4 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 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, 24 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 6 SDslu, 13 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.875 AbsIntWeakeningRatio, 1.0 AbsIntAvgWeakeningVarsNumRemoved, 0.42857142857142855 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 616 SizeOfPredicates, 3 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...