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 0.1.24-673a906-m [2019-10-03 02:34:53,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:34:53,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:34:53,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:34:53,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:34:53,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:34:53,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:34:53,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:34:53,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:34:53,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:34:53,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:34:53,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:34:53,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:34:53,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:34:53,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:34:53,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:34:53,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:34:53,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:34:53,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:34:53,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:34:53,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:34:53,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:34:53,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:34:53,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:34:53,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 02:34:53,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:34:53,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:34:53,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:34:53,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:34:53,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:34:53,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:34:53,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:34:53,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:34:53,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:34:53,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:34:53,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:34:53,503 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 [2019-10-03 02:34:53,523 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:34:53,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:34:53,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:34:53,524 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:34:53,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:34:53,526 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:34:53,526 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:34:53,526 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:34:53,526 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:34:53,527 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:34:53,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:34:53,529 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:34:53,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:34:53,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:34:53,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:34:53,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:34:53,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:34:53,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:34:53,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:34:53,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:34:53,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:34:53,532 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:34:53,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:34:53,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:34:53,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:34:53,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:34:53,533 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:34:53,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:34:53,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:34:53,534 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:34:53,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:34:53,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:34:53,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:34:53,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:34:53,609 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:34:53,610 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-1.c [2019-10-03 02:34:53,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8086ec9/af88bb2fedc54382abcd4a04a6085f7c/FLAG59556a1d5 [2019-10-03 02:34:54,101 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:34:54,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-1.c [2019-10-03 02:34:54,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8086ec9/af88bb2fedc54382abcd4a04a6085f7c/FLAG59556a1d5 [2019-10-03 02:34:54,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8086ec9/af88bb2fedc54382abcd4a04a6085f7c [2019-10-03 02:34:54,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:34:54,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:34:54,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:34:54,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:34:54,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:34:54,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9690e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54, skipping insertion in model container [2019-10-03 02:34:54,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,529 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:34:54,545 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:34:54,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:34:54,712 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:34:54,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:34:54,843 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:34:54,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54 WrapperNode [2019-10-03 02:34:54,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:34:54,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:34:54,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:34:54,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:34:54,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (1/1) ... [2019-10-03 02:34:54,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:34:54,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:34:54,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:34:54,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:34:54,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (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 [2019-10-03 02:34:54,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:34:54,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:34:54,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 02:34:54,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:34:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:34:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 02:34:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:34:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:34:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:34:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:34:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:34:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:34:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:34:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:34:55,226 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:34:55,226 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-03 02:34:55,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:34:55 BoogieIcfgContainer [2019-10-03 02:34:55,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:34:55,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:34:55,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:34:55,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:34:55,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:34:54" (1/3) ... [2019-10-03 02:34:55,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a07a9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:34:55, skipping insertion in model container [2019-10-03 02:34:55,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:54" (2/3) ... [2019-10-03 02:34:55,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a07a9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:34:55, skipping insertion in model container [2019-10-03 02:34:55,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:34:55" (3/3) ... [2019-10-03 02:34:55,248 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2019-10-03 02:34:55,266 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:34:55,274 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:34:55,291 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:34:55,317 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:34:55,317 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:34:55,317 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:34:55,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:34:55,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:34:55,317 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:34:55,318 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:34:55,318 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:34:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-03 02:34:55,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-03 02:34:55,339 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:34:55,340 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:34:55,342 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:34:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:55,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1330517862, now seen corresponding path program 1 times [2019-10-03 02:34:55,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:34:55,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:55,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:55,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:55,400 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:34:55,433 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-03 02:34:55,433 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-03 02:34:55,433 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 [2019-10-03 02:34:55,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:55,476 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-10-03 02:34:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:55,503 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-10-03 02:34:55,505 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:34:55,506 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:34:55,506 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 [2019-10-03 02:34:55,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:55,539 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-10-03 02:34:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:55,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-03 02:34:55,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:34:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:55,596 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:34:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:55,632 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:34:55,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-03 02:34:55,635 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:34:55,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:34:55,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:34:55,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:34:55,661 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-10-03 02:34:55,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:34:55,685 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-10-03 02:34:55,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:34:55,687 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-03 02:34:55,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:34:55,704 INFO L225 Difference]: With dead ends: 24 [2019-10-03 02:34:55,704 INFO L226 Difference]: Without dead ends: 17 [2019-10-03 02:34:55,708 INFO L640 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 [2019-10-03 02:34:55,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-03 02:34:55,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-03 02:34:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-03 02:34:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-10-03 02:34:55,763 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-10-03 02:34:55,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:34:55,765 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-10-03 02:34:55,765 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:34:55,765 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-10-03 02:34:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-03 02:34:55,767 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:34:55,767 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:34:55,768 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:34:55,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:55,769 INFO L82 PathProgramCache]: Analyzing trace with hash 672047389, now seen corresponding path program 1 times [2019-10-03 02:34:55,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:34:55,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:55,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:55,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:55,772 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:34:55,795 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-03 02:34:55,796 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-03 02:34:55,796 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 [2019-10-03 02:34:55,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:55,825 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-10-03 02:34:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:55,861 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-10-03 02:34:55,862 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:34:55,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:34:55,862 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 [2019-10-03 02:34:55,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:55,900 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-10-03 02:34:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:55,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-03 02:34:55,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:34:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:55,978 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:34:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:56,010 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:34:56,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-03 02:34:56,011 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:34:56,012 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:34:56,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:34:56,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:34:56,013 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-10-03 02:34:56,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:34:56,041 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-10-03 02:34:56,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:34:56,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-03 02:34:56,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:34:56,043 INFO L225 Difference]: With dead ends: 22 [2019-10-03 02:34:56,043 INFO L226 Difference]: Without dead ends: 22 [2019-10-03 02:34:56,044 INFO L640 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 [2019-10-03 02:34:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-03 02:34:56,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-10-03 02:34:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-03 02:34:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-10-03 02:34:56,048 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2019-10-03 02:34:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:34:56,049 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-10-03 02:34:56,049 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:34:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-03 02:34:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-03 02:34:56,050 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:34:56,050 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:34:56,050 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:34:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:56,051 INFO L82 PathProgramCache]: Analyzing trace with hash -830834987, now seen corresponding path program 1 times [2019-10-03 02:34:56,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:34:56,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:56,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:56,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:56,053 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:34:56,060 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-03 02:34:56,060 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-03 02:34:56,060 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 [2019-10-03 02:34:56,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:56,083 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-10-03 02:34:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:56,099 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2019-10-03 02:34:56,101 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [19], [32], [36], [40], [43], [45], [51], [52], [53], [55] [2019-10-03 02:34:56,139 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:34:56,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:34:56,211 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:34:56,213 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. [2019-10-03 02:34:56,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:56,218 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:34:56,271 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:34:56,271 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:34:56,275 INFO L420 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2019-10-03 02:34:56,276 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:34:56,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:34:56,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:34:56,277 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:34:56,278 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:34:56,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:34:56,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:34:56,279 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 2 states. [2019-10-03 02:34:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:34:56,281 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:34:56,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:34:56,281 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-03 02:34:56,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:34:56,281 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:34:56,281 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:34:56,282 INFO L640 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 [2019-10-03 02:34:56,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:34:56,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:34:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:34:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:34:56,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-03 02:34:56,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:34:56,283 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:34:56,284 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:34:56,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:34:56,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:34:56,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:34:56 BoogieIcfgContainer [2019-10-03 02:34:56,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:34:56,293 INFO L168 Benchmark]: Toolchain (without parser) took 1778.88 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 85.3 MB in the beginning and 90.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:56,294 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:34:56,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.12 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 85.0 MB in the beginning and 176.0 MB in the end (delta: -90.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:56,296 INFO L168 Benchmark]: Boogie Preprocessor took 43.39 ms. Allocated memory is still 198.2 MB. Free memory was 176.0 MB in the beginning and 174.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:56,297 INFO L168 Benchmark]: RCFGBuilder took 342.56 ms. Allocated memory is still 198.2 MB. Free memory was 174.0 MB in the beginning and 158.6 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:56,298 INFO L168 Benchmark]: TraceAbstraction took 1054.58 ms. Allocated memory is still 198.2 MB. Free memory was 158.6 MB in the beginning and 90.4 MB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:56,302 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.12 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 85.0 MB in the beginning and 176.0 MB in the end (delta: -90.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.39 ms. Allocated memory is still 198.2 MB. Free memory was 176.0 MB in the beginning and 174.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.56 ms. Allocated memory is still 198.2 MB. Free memory was 174.0 MB in the beginning and 158.6 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1054.58 ms. Allocated memory is still 198.2 MB. Free memory was 158.6 MB in the beginning and 90.4 MB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 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, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s 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, 0.1s 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...