./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/sigma.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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-64bit-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 64bit --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-64bit-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 64bit --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 13:43:51,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:43:51,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:43:51,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:43:51,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:43:51,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:43:51,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:43:51,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:43:51,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:43:51,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:43:51,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:43:51,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:43:51,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:43:51,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:43:51,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:43:51,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:43:51,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:43:51,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:43:51,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:43:51,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:43:51,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:43:51,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:43:51,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:43:51,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:43:51,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:43:51,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:43:51,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:43:51,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:43:51,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:43:51,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:43:51,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:43:51,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:43:51,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:43:51,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:43:51,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:43:51,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:43:51,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:43:51,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:43:51,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:43:51,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:43:51,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:43:51,947 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-22 13:43:51,963 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:43:51,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:43:51,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:43:51,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:43:51,967 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:43:51,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:43:51,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:43:51,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:43:51,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 13:43:51,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:43:51,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 13:43:51,970 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:43:51,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 13:43:51,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:43:51,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 13:43:51,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:43:51,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:43:51,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:43:51,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:43:51,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:43:51,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:43:51,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:43:51,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 13:43:51,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 13:43:51,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 13:43:51,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 13:43:51,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:43:51,975 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0213c2498f4ad9d8dd3bd44119e09066ed0e9f1d [2019-11-22 13:43:52,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:43:52,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:43:52,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:43:52,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:43:52,331 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:43:52,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sigma.i [2019-11-22 13:43:52,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff036926/de9bb4d1f3b54dacb89d5b8a318538c1/FLAG623053661 [2019-11-22 13:43:53,023 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:43:53,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2019-11-22 13:43:53,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff036926/de9bb4d1f3b54dacb89d5b8a318538c1/FLAG623053661 [2019-11-22 13:43:53,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff036926/de9bb4d1f3b54dacb89d5b8a318538c1 [2019-11-22 13:43:53,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:43:53,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 13:43:53,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:53,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:43:53,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:43:53,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:53" (1/1) ... [2019-11-22 13:43:53,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65685be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:53, skipping insertion in model container [2019-11-22 13:43:53,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:53" (1/1) ... [2019-11-22 13:43:53,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:43:53,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:43:53,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:53,902 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 13:43:53,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6955b0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:53, skipping insertion in model container [2019-11-22 13:43:53,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:53,904 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-11-22 13:43:53,906 INFO L168 Benchmark]: Toolchain (without parser) took 679.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-22 13:43:53,907 INFO L168 Benchmark]: CDTParser took 0.63 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 13:43:53,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-22 13:43:53,911 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 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 676.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 28.0 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 13:43:55,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:43:55,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:43:55,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:43:55,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:43:55,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:43:55,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:43:55,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:43:55,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:43:55,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:43:55,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:43:55,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:43:55,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:43:55,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:43:55,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:43:55,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:43:55,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:43:55,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:43:55,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:43:55,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:43:55,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:43:55,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:43:55,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:43:55,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:43:55,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:43:55,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:43:55,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:43:55,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:43:55,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:43:55,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:43:55,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:43:55,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:43:55,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:43:55,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:43:55,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:43:55,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:43:55,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:43:55,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:43:55,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:43:55,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:43:55,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:43:55,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-22 13:43:55,817 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:43:55,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:43:55,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:43:55,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:43:55,821 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:43:55,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:43:55,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:43:55,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 13:43:55,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:43:55,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 13:43:55,823 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:43:55,824 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 13:43:55,824 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 13:43:55,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 13:43:55,825 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:43:55,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 13:43:55,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:43:55,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:43:55,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:43:55,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:43:55,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:43:55,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:43:55,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:43:55,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 13:43:55,827 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 13:43:55,828 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 13:43:55,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 13:43:55,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:43:55,828 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-22 13:43:55,829 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0213c2498f4ad9d8dd3bd44119e09066ed0e9f1d [2019-11-22 13:43:56,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:43:56,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:43:56,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:43:56,156 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:43:56,157 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:43:56,158 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sigma.i [2019-11-22 13:43:56,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0759243/624387acd38041fd9d79f448dba66378/FLAG2749f3aaf [2019-11-22 13:43:56,782 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:43:56,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2019-11-22 13:43:56,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0759243/624387acd38041fd9d79f448dba66378/FLAG2749f3aaf [2019-11-22 13:43:57,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0759243/624387acd38041fd9d79f448dba66378 [2019-11-22 13:43:57,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:43:57,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 13:43:57,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:57,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:43:57,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:43:57,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:57" (1/1) ... [2019-11-22 13:43:57,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2c50b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:57, skipping insertion in model container [2019-11-22 13:43:57,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:57" (1/1) ... [2019-11-22 13:43:57,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:43:57,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:43:57,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:57,789 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 13:43:57,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:43:57,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:57,840 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 13:43:57,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:58,096 INFO L208 MainTranslator]: Completed translation [2019-11-22 13:43:58,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58 WrapperNode [2019-11-22 13:43:58,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:58,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 13:43:58,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 13:43:58,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 13:43:58,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 13:43:58,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 13:43:58,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 13:43:58,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 13:43:58,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (1/1) ... [2019-11-22 13:43:58,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 13:43:58,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 13:43:58,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 13:43:58,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 13:43:58,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (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 13:43:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-22 13:43:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 13:43:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 13:43:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 13:43:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-11-22 13:43:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 13:43:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 13:43:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 13:43:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 13:43:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-11-22 13:43:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-11-22 13:43:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 13:43:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 13:43:58,369 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 13:43:58,893 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 13:43:58,894 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 13:43:58,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:58 BoogieIcfgContainer [2019-11-22 13:43:58,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 13:43:58,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 13:43:58,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 13:43:58,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 13:43:58,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:43:57" (1/3) ... [2019-11-22 13:43:58,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783591c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:58, skipping insertion in model container [2019-11-22 13:43:58,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:58" (2/3) ... [2019-11-22 13:43:58,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783591c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:58, skipping insertion in model container [2019-11-22 13:43:58,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:58" (3/3) ... [2019-11-22 13:43:58,905 INFO L109 eAbstractionObserver]: Analyzing ICFG sigma.i [2019-11-22 13:43:58,942 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,943 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,943 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,943 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,944 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,944 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,944 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,944 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,945 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,945 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,945 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,946 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,946 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,946 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,946 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,946 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,947 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,947 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-22 13:43:58,969 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-22 13:43:58,969 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 13:43:58,977 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-22 13:43:58,989 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-22 13:43:59,010 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 13:43:59,010 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 13:43:59,011 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 13:43:59,011 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 13:43:59,011 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 13:43:59,011 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 13:43:59,011 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 13:43:59,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 13:43:59,024 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 86 transitions [2019-11-22 13:43:59,615 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7899 states. [2019-11-22 13:43:59,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7899 states. [2019-11-22 13:43:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-22 13:43:59,631 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:43:59,632 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 13:43:59,633 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 13:43:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:43:59,643 INFO L82 PathProgramCache]: Analyzing trace with hash -129320810, now seen corresponding path program 1 times [2019-11-22 13:43:59,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:43:59,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1024347256] [2019-11-22 13:43:59,663 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 13:43:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:43:59,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-22 13:43:59,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:43:59,913 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 13:43:59,914 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:43:59,926 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 13:43:59,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1024347256] [2019-11-22 13:43:59,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:43:59,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 13:43:59,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214049241] [2019-11-22 13:43:59,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-22 13:43:59,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:43:59,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-22 13:43:59,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-22 13:43:59,968 INFO L87 Difference]: Start difference. First operand 7899 states. Second operand 2 states. [2019-11-22 13:44:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:00,172 INFO L93 Difference]: Finished difference Result 7899 states and 23970 transitions. [2019-11-22 13:44:00,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-22 13:44:00,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-11-22 13:44:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:00,293 INFO L225 Difference]: With dead ends: 7899 [2019-11-22 13:44:00,294 INFO L226 Difference]: Without dead ends: 5850 [2019-11-22 13:44:00,296 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 13:44:00,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2019-11-22 13:44:00,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5850. [2019-11-22 13:44:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5850 states. [2019-11-22 13:44:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 17529 transitions. [2019-11-22 13:44:00,854 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 17529 transitions. Word has length 32 [2019-11-22 13:44:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:00,855 INFO L462 AbstractCegarLoop]: Abstraction has 5850 states and 17529 transitions. [2019-11-22 13:44:00,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-22 13:44:00,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 17529 transitions. [2019-11-22 13:44:00,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-22 13:44:00,857 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:00,857 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 13:44:01,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:01,060 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 13:44:01,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:01,061 INFO L82 PathProgramCache]: Analyzing trace with hash 589869815, now seen corresponding path program 1 times [2019-11-22 13:44:01,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:01,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1859185686] [2019-11-22 13:44:01,063 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 13:44:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:01,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 13:44:01,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:01,257 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 13:44:01,258 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:01,291 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 13:44:01,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1859185686] [2019-11-22 13:44:01,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:44:01,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 13:44:01,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422307704] [2019-11-22 13:44:01,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 13:44:01,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:01,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 13:44:01,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-22 13:44:01,296 INFO L87 Difference]: Start difference. First operand 5850 states and 17529 transitions. Second operand 6 states. [2019-11-22 13:44:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:01,559 INFO L93 Difference]: Finished difference Result 4138 states and 11380 transitions. [2019-11-22 13:44:01,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:44:01,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-22 13:44:01,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:01,585 INFO L225 Difference]: With dead ends: 4138 [2019-11-22 13:44:01,586 INFO L226 Difference]: Without dead ends: 4138 [2019-11-22 13:44:01,587 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 13:44:01,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2019-11-22 13:44:01,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 4004. [2019-11-22 13:44:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4004 states. [2019-11-22 13:44:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 11101 transitions. [2019-11-22 13:44:01,709 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 11101 transitions. Word has length 32 [2019-11-22 13:44:01,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:01,709 INFO L462 AbstractCegarLoop]: Abstraction has 4004 states and 11101 transitions. [2019-11-22 13:44:01,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 13:44:01,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 11101 transitions. [2019-11-22 13:44:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-22 13:44:01,716 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:01,716 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 13:44:01,920 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:01,921 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 13:44:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash -759591351, now seen corresponding path program 1 times [2019-11-22 13:44:01,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:01,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1113395860] [2019-11-22 13:44:01,922 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 13:44:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:02,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:44:02,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:02,231 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 13:44:02,232 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:02,324 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 13:44:02,324 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1113395860] [2019-11-22 13:44:02,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:44:02,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-22 13:44:02,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357340322] [2019-11-22 13:44:02,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 13:44:02,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:02,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 13:44:02,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:44:02,327 INFO L87 Difference]: Start difference. First operand 4004 states and 11101 transitions. Second operand 10 states. [2019-11-22 13:44:02,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:02,800 INFO L93 Difference]: Finished difference Result 3944 states and 10923 transitions. [2019-11-22 13:44:02,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 13:44:02,801 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-11-22 13:44:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:02,825 INFO L225 Difference]: With dead ends: 3944 [2019-11-22 13:44:02,825 INFO L226 Difference]: Without dead ends: 3944 [2019-11-22 13:44:02,827 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 13:44:02,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2019-11-22 13:44:02,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3944. [2019-11-22 13:44:02,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-11-22 13:44:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 10923 transitions. [2019-11-22 13:44:02,955 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 10923 transitions. Word has length 57 [2019-11-22 13:44:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:02,957 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 10923 transitions. [2019-11-22 13:44:02,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 13:44:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 10923 transitions. [2019-11-22 13:44:02,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-22 13:44:02,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:02,970 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 13:44:03,173 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:03,173 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 13:44:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1069431205, now seen corresponding path program 1 times [2019-11-22 13:44:03,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:03,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1512525037] [2019-11-22 13:44:03,175 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 13:44:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:03,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-22 13:44:03,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:03,596 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 13:44:03,596 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:03,932 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 13:44:03,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1512525037] [2019-11-22 13:44:03,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:44:03,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-22 13:44:03,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132259076] [2019-11-22 13:44:03,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 13:44:03,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:03,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 13:44:03,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2019-11-22 13:44:03,935 INFO L87 Difference]: Start difference. First operand 3944 states and 10923 transitions. Second operand 18 states. [2019-11-22 13:44:04,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:04,560 INFO L93 Difference]: Finished difference Result 1138 states and 3341 transitions. [2019-11-22 13:44:04,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 13:44:04,561 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 81 [2019-11-22 13:44:04,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:04,562 INFO L225 Difference]: With dead ends: 1138 [2019-11-22 13:44:04,562 INFO L226 Difference]: Without dead ends: 0 [2019-11-22 13:44:04,563 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 13:44:04,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-22 13:44:04,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-22 13:44:04,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-22 13:44:04,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-22 13:44:04,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2019-11-22 13:44:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:04,564 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-22 13:44:04,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 13:44:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-22 13:44:04,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-22 13:44:04,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:04,779 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-22 13:44:04,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:44:04 BasicIcfg [2019-11-22 13:44:04,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 13:44:04,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 13:44:04,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 13:44:04,782 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 13:44:04,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:58" (3/4) ... [2019-11-22 13:44:04,786 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-22 13:44:04,796 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread [2019-11-22 13:44:04,807 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-22 13:44:04,809 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-22 13:44:04,810 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-22 13:44:04,882 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-22 13:44:04,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 13:44:04,885 INFO L168 Benchmark]: Toolchain (without parser) took 7823.63 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.1 MB). Free memory was 956.3 MB in the beginning and 884.4 MB in the end (delta: 71.9 MB). Peak memory consumption was 366.0 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:04,886 INFO L168 Benchmark]: CDTParser took 0.30 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 13:44:04,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1035.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -98.0 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:04,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.74 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 13:44:04,887 INFO L168 Benchmark]: Boogie Preprocessor took 89.96 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:04,888 INFO L168 Benchmark]: RCFGBuilder took 600.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:04,889 INFO L168 Benchmark]: TraceAbstraction took 5884.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 154.7 MB). Free memory was 1.0 GB in the beginning and 893.2 MB in the end (delta: 122.8 MB). Peak memory consumption was 277.5 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:04,890 INFO L168 Benchmark]: Witness Printer took 100.82 ms. Allocated memory is still 1.3 GB. Free memory was 893.2 MB in the beginning and 884.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:04,893 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1035.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -98.0 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 106.74 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 89.96 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 600.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5884.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 154.7 MB). Free memory was 1.0 GB in the beginning and 893.2 MB in the end (delta: 122.8 MB). Peak memory consumption was 277.5 MB. Max. memory is 11.5 GB. * Witness Printer took 100.82 ms. Allocated memory is still 1.3 GB. Free memory was 893.2 MB in the beginning and 884.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 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: 5.7s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 340 SDtfs, 957 SDslu, 1041 SDs, 0 SdLazy, 293 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 396 ConstructedInterpolants, 0 QuantifiedInterpolants, 78092 SizeOfPredicates, 14 NumberOfNonLiveVariables, 426 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...