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 0.1.24-36ac518-m [2019-10-07 13:47:22,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:47:22,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:47:22,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:47:22,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:47:22,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:47:22,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:47:22,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:47:22,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:47:22,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:47:22,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:47:22,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:47:22,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:47:22,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:47:22,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:47:22,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:47:22,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:47:22,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:47:22,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:47:22,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:47:22,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:47:22,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:47:22,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:47:22,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:47:22,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:47:22,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:47:22,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:47:22,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:47:22,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:47:22,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:47:22,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:47:22,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:47:22,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:47:22,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:47:22,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:47:22,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:47:22,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:47:22,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:47:22,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:47:22,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:47:22,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:47:22,592 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 [2019-10-07 13:47:22,605 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:47:22,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:47:22,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:47:22,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:47:22,606 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:47:22,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:47:22,607 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:47:22,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:47:22,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:47:22,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:47:22,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:47:22,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:47:22,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:47:22,608 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:47:22,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:47:22,609 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:47:22,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:47:22,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:47:22,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:47:22,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:47:22,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:47:22,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:47:22,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:47:22,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:47:22,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:47:22,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:47:22,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:47:22,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:47:22,611 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 [2019-10-07 13:47:22,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:47:22,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:47:22,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:47:22,913 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:47:22,914 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:47:22,914 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex02-2.c [2019-10-07 13:47:22,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657a5c774/834926e1988f46a488a779217fa577fe/FLAG4440bdc79 [2019-10-07 13:47:23,414 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:47:23,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex02-2.c [2019-10-07 13:47:23,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657a5c774/834926e1988f46a488a779217fa577fe/FLAG4440bdc79 [2019-10-07 13:47:23,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657a5c774/834926e1988f46a488a779217fa577fe [2019-10-07 13:47:23,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:47:23,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:47:23,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:47:23,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:47:23,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:47:23,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:47:23" (1/1) ... [2019-10-07 13:47:23,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc525ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:23, skipping insertion in model container [2019-10-07 13:47:23,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:47:23" (1/1) ... [2019-10-07 13:47:23,835 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:47:23,849 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:47:23,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:47:23,998 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:47:24,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:47:24,025 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:47:24,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24 WrapperNode [2019-10-07 13:47:24,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:47:24,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:47:24,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:47:24,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:47:24,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (1/1) ... [2019-10-07 13:47:24,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (1/1) ... [2019-10-07 13:47:24,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (1/1) ... [2019-10-07 13:47:24,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (1/1) ... [2019-10-07 13:47:24,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (1/1) ... [2019-10-07 13:47:24,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (1/1) ... [2019-10-07 13:47:24,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (1/1) ... [2019-10-07 13:47:24,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:47:24,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:47:24,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:47:24,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:47:24,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (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 [2019-10-07 13:47:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:47:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:47:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:47:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-07 13:47:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:47:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:47:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:47:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 13:47:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:47:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-07 13:47:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:47:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:47:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:47:24,382 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:47:24,382 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:47:24,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:47:24 BoogieIcfgContainer [2019-10-07 13:47:24,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:47:24,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:47:24,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:47:24,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:47:24,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:47:23" (1/3) ... [2019-10-07 13:47:24,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34479411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:47:24, skipping insertion in model container [2019-10-07 13:47:24,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:24" (2/3) ... [2019-10-07 13:47:24,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34479411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:47:24, skipping insertion in model container [2019-10-07 13:47:24,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:47:24" (3/3) ... [2019-10-07 13:47:24,404 INFO L109 eAbstractionObserver]: Analyzing ICFG trex02-2.c [2019-10-07 13:47:24,437 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:47:24,446 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:47:24,461 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:47:24,494 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:47:24,495 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:47:24,495 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:47:24,495 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:47:24,495 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:47:24,495 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:47:24,496 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:47:24,496 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:47:24,510 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-07 13:47:24,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:47:24,514 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:47:24,515 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:47:24,517 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:47:24,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:47:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 987415401, now seen corresponding path program 1 times [2019-10-07 13:47:24,529 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:47:24,529 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:47:24,529 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:47:24,530 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:47:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:47:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:47:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:47:24,643 INFO L161 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-07 13:47:24,644 INFO L451 BasicCegarLoop]: Counterexample might be feasible [2019-10-07 13:47:24,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:47:24 BoogieIcfgContainer [2019-10-07 13:47:24,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:47:24,674 INFO L168 Benchmark]: Toolchain (without parser) took 850.57 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 104.0 MB in the beginning and 155.1 MB in the end (delta: -51.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:24,676 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:47:24,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.44 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 94.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:24,680 INFO L168 Benchmark]: Boogie Preprocessor took 107.13 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 94.6 MB in the beginning and 181.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:24,681 INFO L168 Benchmark]: RCFGBuilder took 249.67 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 168.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:24,682 INFO L168 Benchmark]: TraceAbstraction took 284.16 ms. Allocated memory is still 202.4 MB. Free memory was 167.8 MB in the beginning and 155.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:24,686 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 205.44 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 94.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.13 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 94.6 MB in the beginning and 181.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 249.67 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 168.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 284.16 ms. Allocated memory is still 202.4 MB. Free memory was 167.8 MB in the beginning and 155.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 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: 0.1s, 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...