./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/sigma.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d056a1f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/sigma.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0213c2498f4ad9d8dd3bd44119e09066ed0e9f1d ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/sigma.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0213c2498f4ad9d8dd3bd44119e09066ed0e9f1d ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-3d056a1 [2019-11-22 14:15:15,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:15:15,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:15:15,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:15:15,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:15:15,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:15:15,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:15:15,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:15:15,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:15:15,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:15:15,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:15:15,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:15:15,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:15:15,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:15:15,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:15:15,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:15:15,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:15:15,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:15:15,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:15:15,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:15:15,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:15:15,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:15:15,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:15:15,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:15:15,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:15:15,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:15:15,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:15:15,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:15:15,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:15:15,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:15:15,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:15:15,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:15:15,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:15:15,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:15:15,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:15:15,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:15:15,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:15:15,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:15:15,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:15:15,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:15:15,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:15:15,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-22 14:15:15,418 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:15:15,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:15:15,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:15:15,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:15:15,420 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:15:15,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:15:15,421 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:15:15,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 14:15:15,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:15:15,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:15:15,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 14:15:15,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:15:15,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 14:15:15,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:15:15,423 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:15:15,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 14:15:15,424 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:15:15,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 14:15:15,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:15:15,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:15:15,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:15:15,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:15:15,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:15:15,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:15:15,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:15:15,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 14:15:15,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 14:15:15,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 14:15:15,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 14:15:15,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0213c2498f4ad9d8dd3bd44119e09066ed0e9f1d [2019-11-22 14:15:15,737 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:15:15,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:15:15,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:15:15,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:15:15,762 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:15:15,763 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sigma.i [2019-11-22 14:15:15,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664899de6/140a211c65784b9d98e77f0488525bdb/FLAG6ce736542 [2019-11-22 14:15:16,443 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:15:16,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2019-11-22 14:15:16,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664899de6/140a211c65784b9d98e77f0488525bdb/FLAG6ce736542 [2019-11-22 14:15:16,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664899de6/140a211c65784b9d98e77f0488525bdb [2019-11-22 14:15:16,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:15:16,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 14:15:16,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:15:16,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:15:16,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:15:16,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:15:16" (1/1) ... [2019-11-22 14:15:16,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e3f9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:16, skipping insertion in model container [2019-11-22 14:15:16,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:15:16" (1/1) ... [2019-11-22 14:15:16,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:15:16,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:15:17,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:15:17,333 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-22 14:15:17,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@68236d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:17, skipping insertion in model container [2019-11-22 14:15:17,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:15:17,334 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-11-22 14:15:17,337 INFO L168 Benchmark]: Toolchain (without parser) took 657.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:17,338 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:15:17,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:17,342 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 653.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1102]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-3d056a1 [2019-11-22 14:15:19,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:15:19,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:15:19,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:15:19,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:15:19,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:15:19,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:15:19,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:15:19,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:15:19,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:15:19,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:15:19,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:15:19,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:15:19,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:15:19,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:15:19,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:15:19,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:15:19,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:15:19,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:15:19,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:15:19,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:15:19,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:15:19,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:15:19,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:15:19,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:15:19,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:15:19,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:15:19,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:15:19,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:15:19,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:15:19,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:15:19,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:15:19,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:15:19,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:15:19,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:15:19,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:15:19,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:15:19,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:15:19,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:15:19,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:15:19,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:15:19,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-22 14:15:19,247 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:15:19,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:15:19,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:15:19,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:15:19,252 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:15:19,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:15:19,255 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:15:19,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:15:19,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:15:19,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 14:15:19,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:15:19,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 14:15:19,257 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:15:19,257 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 14:15:19,257 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 14:15:19,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:15:19,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 14:15:19,259 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:15:19,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 14:15:19,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:15:19,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:15:19,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:15:19,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:15:19,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:15:19,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:15:19,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:15:19,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 14:15:19,264 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 14:15:19,265 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 14:15:19,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 14:15:19,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 14:15:19,265 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0213c2498f4ad9d8dd3bd44119e09066ed0e9f1d [2019-11-22 14:15:19,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:15:19,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:15:19,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:15:19,615 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:15:19,616 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:15:19,616 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sigma.i [2019-11-22 14:15:19,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c100616/6d190dd22d1041ba86e7bb972085b879/FLAGa30511bf4 [2019-11-22 14:15:20,298 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:15:20,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2019-11-22 14:15:20,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c100616/6d190dd22d1041ba86e7bb972085b879/FLAGa30511bf4 [2019-11-22 14:15:20,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c100616/6d190dd22d1041ba86e7bb972085b879 [2019-11-22 14:15:20,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:15:20,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 14:15:20,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:15:20,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:15:20,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:15:20,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:15:20" (1/1) ... [2019-11-22 14:15:20,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac594ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:20, skipping insertion in model container [2019-11-22 14:15:20,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:15:20" (1/1) ... [2019-11-22 14:15:20,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:15:20,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:15:21,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:15:21,201 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 14:15:21,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:15:21,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:15:21,268 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 14:15:21,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:15:21,500 INFO L208 MainTranslator]: Completed translation [2019-11-22 14:15:21,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21 WrapperNode [2019-11-22 14:15:21,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:15:21,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 14:15:21,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 14:15:21,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 14:15:21,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 14:15:21,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 14:15:21,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 14:15:21,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 14:15:21,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (1/1) ... [2019-11-22 14:15:21,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 14:15:21,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 14:15:21,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 14:15:21,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 14:15:21,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (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 [2019-11-22 14:15:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 14:15:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 14:15:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 14:15:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 14:15:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 14:15:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 14:15:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 14:15:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-11-22 14:15:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-11-22 14:15:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 14:15:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 14:15:21,697 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-22 14:15:22,175 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 14:15:22,176 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 14:15:22,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:22 BoogieIcfgContainer [2019-11-22 14:15:22,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 14:15:22,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 14:15:22,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 14:15:22,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 14:15:22,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:15:20" (1/3) ... [2019-11-22 14:15:22,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0951d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:15:22, skipping insertion in model container [2019-11-22 14:15:22,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:15:21" (2/3) ... [2019-11-22 14:15:22,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0951d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:15:22, skipping insertion in model container [2019-11-22 14:15:22,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:22" (3/3) ... [2019-11-22 14:15:22,186 INFO L109 eAbstractionObserver]: Analyzing ICFG sigma.i [2019-11-22 14:15:22,219 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,219 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,219 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,220 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,220 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,220 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,220 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,221 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,221 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,221 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,221 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,222 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,225 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,226 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,226 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,227 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,227 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,228 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 14:15:22,248 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-22 14:15:22,249 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 14:15:22,255 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-22 14:15:22,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-22 14:15:22,284 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 14:15:22,285 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 14:15:22,285 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 14:15:22,285 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 14:15:22,285 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 14:15:22,285 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 14:15:22,286 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 14:15:22,286 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 14:15:22,297 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 86 transitions [2019-11-22 14:15:22,875 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7899 states. [2019-11-22 14:15:22,878 INFO L276 IsEmpty]: Start isEmpty. Operand 7899 states. [2019-11-22 14:15:22,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-22 14:15:22,889 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:15:22,891 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:15:22,891 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 14:15:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:15:22,899 INFO L82 PathProgramCache]: Analyzing trace with hash -129320810, now seen corresponding path program 1 times [2019-11-22 14:15:22,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:15:22,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1739460804] [2019-11-22 14:15:22,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:15:23,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-22 14:15:23,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:15:23,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:15:23,136 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:15:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:15:23,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1739460804] [2019-11-22 14:15:23,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:15:23,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 14:15:23,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880261544] [2019-11-22 14:15:23,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-22 14:15:23,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:15:23,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-22 14:15:23,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-22 14:15:23,178 INFO L87 Difference]: Start difference. First operand 7899 states. Second operand 2 states. [2019-11-22 14:15:23,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:15:23,361 INFO L93 Difference]: Finished difference Result 7899 states and 23970 transitions. [2019-11-22 14:15:23,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-22 14:15:23,362 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-11-22 14:15:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:15:23,472 INFO L225 Difference]: With dead ends: 7899 [2019-11-22 14:15:23,473 INFO L226 Difference]: Without dead ends: 5850 [2019-11-22 14:15:23,476 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-22 14:15:23,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2019-11-22 14:15:23,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5850. [2019-11-22 14:15:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5850 states. [2019-11-22 14:15:23,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 17529 transitions. [2019-11-22 14:15:23,962 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 17529 transitions. Word has length 32 [2019-11-22 14:15:23,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:15:23,963 INFO L462 AbstractCegarLoop]: Abstraction has 5850 states and 17529 transitions. [2019-11-22 14:15:23,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-22 14:15:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 17529 transitions. [2019-11-22 14:15:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-22 14:15:23,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:15:23,965 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:15:24,168 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:24,168 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 14:15:24,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:15:24,170 INFO L82 PathProgramCache]: Analyzing trace with hash 589869815, now seen corresponding path program 1 times [2019-11-22 14:15:24,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:15:24,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [806645584] [2019-11-22 14:15:24,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:15:24,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 14:15:24,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:15:24,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:15:24,366 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:15:24,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:15:24,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [806645584] [2019-11-22 14:15:24,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:15:24,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 14:15:24,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245272928] [2019-11-22 14:15:24,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 14:15:24,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:15:24,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 14:15:24,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-22 14:15:24,411 INFO L87 Difference]: Start difference. First operand 5850 states and 17529 transitions. Second operand 6 states. [2019-11-22 14:15:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:15:24,696 INFO L93 Difference]: Finished difference Result 4138 states and 11380 transitions. [2019-11-22 14:15:24,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:15:24,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-22 14:15:24,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:15:24,734 INFO L225 Difference]: With dead ends: 4138 [2019-11-22 14:15:24,734 INFO L226 Difference]: Without dead ends: 4138 [2019-11-22 14:15:24,736 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-22 14:15:24,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2019-11-22 14:15:24,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 4004. [2019-11-22 14:15:24,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4004 states. [2019-11-22 14:15:24,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 11101 transitions. [2019-11-22 14:15:24,940 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 11101 transitions. Word has length 32 [2019-11-22 14:15:24,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:15:24,941 INFO L462 AbstractCegarLoop]: Abstraction has 4004 states and 11101 transitions. [2019-11-22 14:15:24,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 14:15:24,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 11101 transitions. [2019-11-22 14:15:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-22 14:15:24,959 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:15:24,960 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:15:25,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:25,162 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 14:15:25,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:15:25,163 INFO L82 PathProgramCache]: Analyzing trace with hash -759591351, now seen corresponding path program 1 times [2019-11-22 14:15:25,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:15:25,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1554705692] [2019-11-22 14:15:25,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:15:25,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:15:25,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:15:25,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-22 14:15:25,416 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:15:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-22 14:15:25,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1554705692] [2019-11-22 14:15:25,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 14:15:25,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-22 14:15:25,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106624347] [2019-11-22 14:15:25,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 14:15:25,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:15:25,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 14:15:25,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 14:15:25,514 INFO L87 Difference]: Start difference. First operand 4004 states and 11101 transitions. Second operand 10 states. [2019-11-22 14:15:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:15:25,909 INFO L93 Difference]: Finished difference Result 3944 states and 10923 transitions. [2019-11-22 14:15:25,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 14:15:25,910 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-11-22 14:15:25,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:15:25,936 INFO L225 Difference]: With dead ends: 3944 [2019-11-22 14:15:25,936 INFO L226 Difference]: Without dead ends: 3944 [2019-11-22 14:15:25,938 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2019-11-22 14:15:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2019-11-22 14:15:26,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3944. [2019-11-22 14:15:26,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-11-22 14:15:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 10923 transitions. [2019-11-22 14:15:26,049 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 10923 transitions. Word has length 57 [2019-11-22 14:15:26,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:15:26,051 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 10923 transitions. [2019-11-22 14:15:26,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 14:15:26,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 10923 transitions. [2019-11-22 14:15:26,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-22 14:15:26,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:15:26,062 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:15:26,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:26,270 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 14:15:26,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:15:26,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1069431205, now seen corresponding path program 1 times [2019-11-22 14:15:26,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:15:26,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1901015472] [2019-11-22 14:15:26,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:15:26,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-22 14:15:26,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:15:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-22 14:15:26,759 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:15:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-22 14:15:27,074 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1901015472] [2019-11-22 14:15:27,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 14:15:27,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-22 14:15:27,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279640028] [2019-11-22 14:15:27,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 14:15:27,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:15:27,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 14:15:27,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2019-11-22 14:15:27,076 INFO L87 Difference]: Start difference. First operand 3944 states and 10923 transitions. Second operand 18 states. [2019-11-22 14:15:27,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:15:27,531 INFO L93 Difference]: Finished difference Result 1138 states and 3341 transitions. [2019-11-22 14:15:27,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 14:15:27,532 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 81 [2019-11-22 14:15:27,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:15:27,536 INFO L225 Difference]: With dead ends: 1138 [2019-11-22 14:15:27,536 INFO L226 Difference]: Without dead ends: 0 [2019-11-22 14:15:27,537 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2019-11-22 14:15:27,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-22 14:15:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-22 14:15:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-22 14:15:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-22 14:15:27,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2019-11-22 14:15:27,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:15:27,539 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-22 14:15:27,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 14:15:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-22 14:15:27,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-22 14:15:27,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:15:27,747 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-22 14:15:27,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:15:27 BasicIcfg [2019-11-22 14:15:27,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 14:15:27,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 14:15:27,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 14:15:27,750 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 14:15:27,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:22" (3/4) ... [2019-11-22 14:15:27,753 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-22 14:15:27,763 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread [2019-11-22 14:15:27,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-22 14:15:27,771 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-22 14:15:27,771 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-22 14:15:27,823 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-22 14:15:27,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 14:15:27,826 INFO L168 Benchmark]: Toolchain (without parser) took 7321.84 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 288.9 MB). Free memory was 948.3 MB in the beginning and 894.9 MB in the end (delta: 53.4 MB). Peak memory consumption was 342.3 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:27,827 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:15:27,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 996.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -118.6 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:27,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:15:27,829 INFO L168 Benchmark]: Boogie Preprocessor took 44.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:27,830 INFO L168 Benchmark]: RCFGBuilder took 571.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:27,830 INFO L168 Benchmark]: TraceAbstraction took 5570.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 136.8 MB). Free memory was 1.0 GB in the beginning and 903.3 MB in the end (delta: 132.6 MB). Peak memory consumption was 269.4 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:27,831 INFO L168 Benchmark]: Witness Printer took 74.56 ms. Allocated memory is still 1.3 GB. Free memory was 903.3 MB in the beginning and 894.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-22 14:15:27,834 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 996.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -118.6 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 571.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5570.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 136.8 MB). Free memory was 1.0 GB in the beginning and 903.3 MB in the end (delta: 132.6 MB). Peak memory consumption was 269.4 MB. Max. memory is 11.5 GB. * Witness Printer took 74.56 ms. Allocated memory is still 1.3 GB. Free memory was 903.3 MB in the beginning and 894.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1089]: 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 5 procedures, 84 locations, 1 error locations. Result: SAFE, OverallTime: 5.4s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 340 SDtfs, 957 SDslu, 1041 SDs, 0 SdLazy, 293 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7899occurred 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: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 134 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 396 ConstructedInterpolants, 0 QuantifiedInterpolants, 78092 SizeOfPredicates, 14 NumberOfNonLiveVariables, 378 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 4/84 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...