/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/volatile_alias.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 03:57:05,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 03:57:05,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 03:57:05,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 03:57:05,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 03:57:05,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 03:57:05,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 03:57:05,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 03:57:05,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 03:57:05,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 03:57:05,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 03:57:05,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 03:57:05,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 03:57:05,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 03:57:05,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 03:57:05,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 03:57:05,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 03:57:05,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 03:57:05,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 03:57:05,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 03:57:05,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 03:57:05,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 03:57:05,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 03:57:05,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 03:57:05,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 03:57:05,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 03:57:05,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 03:57:05,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 03:57:05,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 03:57:05,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 03:57:05,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 03:57:05,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 03:57:05,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 03:57:05,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 03:57:05,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 03:57:05,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 03:57:05,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 03:57:05,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 03:57:05,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 03:57:05,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 03:57:05,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 03:57:05,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 03:57:05,200 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 03:57:05,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 03:57:05,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 03:57:05,202 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 03:57:05,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 03:57:05,202 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 03:57:05,202 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 03:57:05,202 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 03:57:05,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 03:57:05,203 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 03:57:05,203 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 03:57:05,203 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 03:57:05,203 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 03:57:05,204 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 03:57:05,204 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 03:57:05,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 03:57:05,205 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 03:57:05,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 03:57:05,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 03:57:05,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 03:57:05,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 03:57:05,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 03:57:05,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 03:57:05,206 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 03:57:05,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 03:57:05,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 03:57:05,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 03:57:05,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 03:57:05,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 03:57:05,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 03:57:05,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 03:57:05,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 03:57:05,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 03:57:05,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 03:57:05,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 03:57:05,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 03:57:05,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 03:57:05,209 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 03:57:05,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 03:57:05,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 03:57:05,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 03:57:05,513 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 03:57:05,514 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 03:57:05,514 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/volatile_alias.c_1.i [2019-11-24 03:57:05,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a535d979/8efbcfcdd04743269af7db3065912c7d/FLAG669ffefcd [2019-11-24 03:57:06,009 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 03:57:06,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/volatile_alias.c_1.i [2019-11-24 03:57:06,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a535d979/8efbcfcdd04743269af7db3065912c7d/FLAG669ffefcd [2019-11-24 03:57:06,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a535d979/8efbcfcdd04743269af7db3065912c7d [2019-11-24 03:57:06,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 03:57:06,405 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 03:57:06,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 03:57:06,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 03:57:06,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 03:57:06,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182f03c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06, skipping insertion in model container [2019-11-24 03:57:06,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 03:57:06,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 03:57:06,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:57:06,611 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 03:57:06,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:57:06,642 INFO L208 MainTranslator]: Completed translation [2019-11-24 03:57:06,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06 WrapperNode [2019-11-24 03:57:06,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 03:57:06,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 03:57:06,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 03:57:06,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 03:57:06,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 03:57:06,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 03:57:06,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 03:57:06,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 03:57:06,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (1/1) ... [2019-11-24 03:57:06,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 03:57:06,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 03:57:06,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 03:57:06,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 03:57:06,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (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 [2019-11-24 03:57:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 03:57:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 03:57:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 03:57:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 03:57:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 03:57:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 03:57:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 03:57:07,048 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 03:57:07,048 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-24 03:57:07,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:57:07 BoogieIcfgContainer [2019-11-24 03:57:07,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 03:57:07,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 03:57:07,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 03:57:07,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 03:57:07,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 03:57:06" (1/3) ... [2019-11-24 03:57:07,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304ac4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:57:07, skipping insertion in model container [2019-11-24 03:57:07,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:57:06" (2/3) ... [2019-11-24 03:57:07,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304ac4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:57:07, skipping insertion in model container [2019-11-24 03:57:07,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:57:07" (3/3) ... [2019-11-24 03:57:07,076 INFO L109 eAbstractionObserver]: Analyzing ICFG volatile_alias.c_1.i [2019-11-24 03:57:07,101 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 03:57:07,120 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 03:57:07,131 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 03:57:07,160 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 03:57:07,160 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 03:57:07,160 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 03:57:07,160 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 03:57:07,160 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 03:57:07,160 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 03:57:07,160 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 03:57:07,161 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 03:57:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-24 03:57:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-24 03:57:07,177 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:57:07,178 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-24 03:57:07,178 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:57:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:57:07,185 INFO L82 PathProgramCache]: Analyzing trace with hash 45329, now seen corresponding path program 1 times [2019-11-24 03:57:07,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:57:07,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503004468] [2019-11-24 03:57:07,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:57:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:57:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 03:57:07,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503004468] [2019-11-24 03:57:07,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:57:07,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 03:57:07,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794330777] [2019-11-24 03:57:07,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 03:57:07,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:57:07,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 03:57:07,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:57:07,358 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-11-24 03:57:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:57:07,381 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-11-24 03:57:07,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 03:57:07,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-24 03:57:07,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:57:07,390 INFO L225 Difference]: With dead ends: 8 [2019-11-24 03:57:07,390 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 03:57:07,393 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:57:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 03:57:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 03:57:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 03:57:07,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 03:57:07,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-24 03:57:07,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:57:07,418 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 03:57:07,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 03:57:07,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 03:57:07,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 03:57:07,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 03:57:07,434 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 03:57:07,434 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 03:57:07,435 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 23) no Hoare annotation was computed. [2019-11-24 03:57:07,435 INFO L444 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-24 03:57:07,435 INFO L444 ceAbstractionStarter]: For program point L22(lines 22 24) no Hoare annotation was computed. [2019-11-24 03:57:07,435 INFO L447 ceAbstractionStarter]: At program point L22-2(lines 22 24) the Hoare annotation is: true [2019-11-24 03:57:07,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 03:57:07 BoogieIcfgContainer [2019-11-24 03:57:07,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 03:57:07,449 INFO L168 Benchmark]: Toolchain (without parser) took 1042.98 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 144.9 MB in the end (delta: -43.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-11-24 03:57:07,450 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 03:57:07,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.12 ms. Allocated memory is still 136.8 MB. Free memory was 101.1 MB in the beginning and 91.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-11-24 03:57:07,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.24 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 179.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-11-24 03:57:07,459 INFO L168 Benchmark]: Boogie Preprocessor took 15.92 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 178.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 03:57:07,459 INFO L168 Benchmark]: RCFGBuilder took 275.57 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 165.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-11-24 03:57:07,460 INFO L168 Benchmark]: TraceAbstraction took 393.29 ms. Allocated memory is still 200.8 MB. Free memory was 165.0 MB in the beginning and 144.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-11-24 03:57:07,464 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.12 ms. Allocated memory is still 136.8 MB. Free memory was 101.1 MB in the beginning and 91.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.24 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 179.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 15.92 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 178.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 275.57 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 165.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 393.29 ms. Allocated memory is still 200.8 MB. Free memory was 165.0 MB in the beginning and 144.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...