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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/trex02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:04:15,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:04:15,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:04:15,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:04:15,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:04:15,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:04:15,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:04:15,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:04:15,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:04:15,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:04:15,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:04:15,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:04:15,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:04:15,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:04:15,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:04:15,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:04:15,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:04:15,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:04:15,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:04:15,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:04:15,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:04:15,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:04:15,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:04:15,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:04:15,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:04:15,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:04:15,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:04:15,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:04:15,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:04:15,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:04:15,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:04:15,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:04:15,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:04:15,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:04:15,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:04:15,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:04:15,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:04:15,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:04:15,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:04:15,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:04:15,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:04:15,887 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:04:15,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:04:15,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:04:15,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:04:15,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:04:15,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:04:15,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:04:15,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:04:15,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:04:15,889 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:04:15,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:04:15,890 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:04:15,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:04:15,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:04:15,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:04:15,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:04:15,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:04:15,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:04:15,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:04:15,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:04:15,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:04:15,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:04:15,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:04:15,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:04:15,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:04:16,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:04:16,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:04:16,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:04:16,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:04:16,264 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:04:16,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex02-2.c [2019-10-15 03:04:16,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8be2b4b/d31f71c06d8f4b7cb09d43a4053b3908/FLAG6dac6be0e [2019-10-15 03:04:16,830 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:04:16,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex02-2.c [2019-10-15 03:04:16,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8be2b4b/d31f71c06d8f4b7cb09d43a4053b3908/FLAG6dac6be0e [2019-10-15 03:04:17,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8be2b4b/d31f71c06d8f4b7cb09d43a4053b3908 [2019-10-15 03:04:17,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:04:17,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:04:17,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:04:17,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:04:17,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:04:17,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cdc86d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17, skipping insertion in model container [2019-10-15 03:04:17,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,214 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:04:17,236 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:04:17,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:04:17,485 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:04:17,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:04:17,525 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:04:17,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17 WrapperNode [2019-10-15 03:04:17,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:04:17,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:04:17,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:04:17,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:04:17,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (1/1) ... [2019-10-15 03:04:17,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:04:17,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:04:17,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:04:17,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:04:17,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (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 [2019-10-15 03:04:17,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:04:17,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:04:17,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:04:17,754 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-15 03:04:17,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:04:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:04:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:04:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 03:04:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:04:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-15 03:04:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:04:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:04:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:04:17,978 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:04:17,978 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:04:17,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:17 BoogieIcfgContainer [2019-10-15 03:04:17,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:04:17,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:04:17,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:04:17,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:04:17,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:04:17" (1/3) ... [2019-10-15 03:04:17,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca0e3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:17, skipping insertion in model container [2019-10-15 03:04:17,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:17" (2/3) ... [2019-10-15 03:04:17,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca0e3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:17, skipping insertion in model container [2019-10-15 03:04:17,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:17" (3/3) ... [2019-10-15 03:04:17,989 INFO L109 eAbstractionObserver]: Analyzing ICFG trex02-2.c [2019-10-15 03:04:18,000 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:04:18,009 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:04:18,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:04:18,051 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:04:18,051 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:04:18,051 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:04:18,052 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:04:18,052 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:04:18,052 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:04:18,052 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:04:18,052 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:04:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-15 03:04:18,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:04:18,076 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:18,077 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:18,079 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:18,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:18,086 INFO L82 PathProgramCache]: Analyzing trace with hash 987415401, now seen corresponding path program 1 times [2019-10-15 03:04:18,095 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:18,095 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553865656] [2019-10-15 03:04:18,095 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:18,096 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:18,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 03:04:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 03:04:18,244 INFO L168 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-15 03:04:18,245 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-15 03:04:18,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:04:18 BoogieIcfgContainer [2019-10-15 03:04:18,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:04:18,284 INFO L168 Benchmark]: Toolchain (without parser) took 1085.73 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 104.1 MB in the beginning and 158.5 MB in the end (delta: -54.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:18,286 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:04:18,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.67 ms. Allocated memory is still 139.5 MB. Free memory was 103.9 MB in the beginning and 94.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:18,291 INFO L168 Benchmark]: Boogie Preprocessor took 155.56 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 94.7 MB in the beginning and 184.4 MB in the end (delta: -89.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:18,293 INFO L168 Benchmark]: RCFGBuilder took 296.97 ms. Allocated memory is still 205.5 MB. Free memory was 184.4 MB in the beginning and 171.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:18,294 INFO L168 Benchmark]: TraceAbstraction took 297.43 ms. Allocated memory is still 205.5 MB. Free memory was 170.8 MB in the beginning and 158.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-10-15 03:04:18,307 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.67 ms. Allocated memory is still 139.5 MB. Free memory was 103.9 MB in the beginning and 94.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.56 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 94.7 MB in the beginning and 184.4 MB in the end (delta: -89.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 296.97 ms. Allocated memory is still 205.5 MB. Free memory was 184.4 MB in the beginning and 171.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 297.43 ms. Allocated memory is still 205.5 MB. Free memory was 170.8 MB in the beginning and 158.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int x; [L20] x=__VERIFIER_nondet_int() [L21] COND FALSE !(x > 0) VAL [\old(x)=0, x=-1] [L26] CALL __VERIFIER_assert(x==0) VAL [\old(cond)=0, \old(x)=0, x=-1] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(x)=0, cond=0, x=-1] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(x)=0, cond=0, x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...