./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dda4e60b50ccb96ce521fa11aa956967863397082d82b1fb589f74967fe28a7c ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dda4e60b50ccb96ce521fa11aa956967863397082d82b1fb589f74967fe28a7c ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:22:21,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:22:21,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:22:21,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:22:21,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:22:21,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:22:21,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:22:21,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:22:21,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:22:21,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:22:21,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:22:21,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:22:21,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:22:21,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:22:21,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:22:21,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:22:21,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:22:21,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:22:21,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:22:21,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:22:21,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:22:21,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:22:21,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:22:21,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:22:21,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:22:21,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:22:21,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:22:21,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:22:21,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:22:21,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:22:21,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:22:21,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:22:21,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:22:21,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:22:21,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:22:21,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:22:21,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:22:21,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:22:21,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:22:21,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:22:21,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:22:21,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:22:21,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:22:21,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:22:21,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:22:21,239 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:22:21,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:22:21,240 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:22:21,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:22:21,241 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:22:21,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:22:21,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:22:21,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:22:21,242 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:22:21,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:22:21,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:22:21,243 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:22:21,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:22:21,244 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:22:21,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:22:21,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:22:21,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:22:21,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:22:21,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:22:21,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:22:21,246 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:22:21,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:22:21,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:22:21,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:22:21,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:22:21,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:22:21,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:22:21,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:21,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:22:21,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:22:21,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:22:21,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:22:21,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:22:21,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:22:21,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:22:21,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:22:21,250 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda4e60b50ccb96ce521fa11aa956967863397082d82b1fb589f74967fe28a7c [2021-10-29 05:22:21,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:22:21,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:22:21,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:22:21,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:22:21,611 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:22:21,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2021-10-29 05:22:21,706 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/ebe44df82/053219110a41449eb2688672f0d2d779/FLAG0bcab7cff [2021-10-29 05:22:22,373 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:22:22,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2021-10-29 05:22:22,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/ebe44df82/053219110a41449eb2688672f0d2d779/FLAG0bcab7cff [2021-10-29 05:22:22,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/ebe44df82/053219110a41449eb2688672f0d2d779 [2021-10-29 05:22:22,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:22:22,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:22:22,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:22,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:22:22,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:22:22,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:22" (1/1) ... [2021-10-29 05:22:22,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e74e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:22, skipping insertion in model container [2021-10-29 05:22:22,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:22" (1/1) ... [2021-10-29 05:22:22,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:22:22,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:22,989 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/sv-benchmarks/c/weaver/parallel-lamport.wvr.c[4210,4223] [2021-10-29 05:22:23,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:23,020 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) [2021-10-29 05:22:23,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40c54c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:23, skipping insertion in model container [2021-10-29 05:22:23,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:23,021 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:22:23,024 INFO L168 Benchmark]: Toolchain (without parser) took 307.41 ms. Allocated memory is still 167.8 MB. Free memory was 130.7 MB in the beginning and 139.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:23,025 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 167.8 MB. Free memory was 138.8 MB in the beginning and 138.8 MB in the end (delta: 24.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:23,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.31 ms. Allocated memory is still 167.8 MB. Free memory was 130.7 MB in the beginning and 139.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:23,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 167.8 MB. Free memory was 138.8 MB in the beginning and 138.8 MB in the end (delta: 24.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.31 ms. Allocated memory is still 167.8 MB. Free memory was 130.7 MB in the beginning and 139.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 170]: 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 0.2.1-dev-b2eff8b [2021-10-29 05:22:25,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:22:25,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:22:25,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:22:25,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:22:25,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:22:25,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:22:25,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:22:25,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:22:25,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:22:25,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:22:25,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:22:25,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:22:25,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:22:25,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:22:25,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:22:25,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:22:25,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:22:25,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:22:25,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:22:25,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:22:25,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:22:25,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:22:25,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:22:25,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:22:25,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:22:25,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:22:25,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:22:25,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:22:25,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:22:25,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:22:25,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:22:25,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:22:25,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:22:25,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:22:25,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:22:25,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:22:25,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:22:25,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:22:25,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:22:25,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:22:25,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:22:25,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:22:25,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:22:25,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:22:25,775 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:22:25,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:22:25,776 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:22:25,776 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:22:25,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:22:25,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:22:25,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:22:25,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:22:25,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:22:25,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:22:25,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:22:25,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:22:25,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:22:25,780 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:22:25,780 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:22:25,780 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:22:25,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:22:25,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:22:25,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:22:25,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:22:25,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:22:25,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:22:25,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:22:25,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:25,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:22:25,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:22:25,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:22:25,784 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:22:25,784 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:22:25,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:22:25,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:22:25,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:22:25,785 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda4e60b50ccb96ce521fa11aa956967863397082d82b1fb589f74967fe28a7c [2021-10-29 05:22:26,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:22:26,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:22:26,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:22:26,300 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:22:26,301 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:22:26,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2021-10-29 05:22:26,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/555fc9fdb/21baff7ea4b74b79975d5e136b91e335/FLAGa3a64899a [2021-10-29 05:22:27,037 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:22:27,038 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2021-10-29 05:22:27,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/555fc9fdb/21baff7ea4b74b79975d5e136b91e335/FLAGa3a64899a [2021-10-29 05:22:27,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/data/555fc9fdb/21baff7ea4b74b79975d5e136b91e335 [2021-10-29 05:22:27,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:22:27,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:22:27,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:27,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:22:27,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:22:27,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b7fdf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27, skipping insertion in model container [2021-10-29 05:22:27,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:22:27,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:27,608 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/sv-benchmarks/c/weaver/parallel-lamport.wvr.c[4210,4223] [2021-10-29 05:22:27,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:27,685 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:22:27,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:27,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/sv-benchmarks/c/weaver/parallel-lamport.wvr.c[4210,4223] [2021-10-29 05:22:27,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:27,736 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:22:27,768 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/sv-benchmarks/c/weaver/parallel-lamport.wvr.c[4210,4223] [2021-10-29 05:22:27,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:27,793 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:22:27,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27 WrapperNode [2021-10-29 05:22:27,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:27,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:22:27,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:22:27,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:22:27,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:22:27,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:22:27,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:22:27,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:22:27,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:22:27,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:22:27,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:22:27,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:22:27,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (1/1) ... [2021-10-29 05:22:27,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:27,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:22:27,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:22:27,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:22:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:22:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:22:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:22:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-29 05:22:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-29 05:22:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-29 05:22:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-29 05:22:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-29 05:22:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-29 05:22:28,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 05:22:28,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 05:22:28,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:22:28,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:22:28,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:22:28,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:22:28,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:22:28,029 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:22:28,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:22:28,911 INFO L299 CfgBuilder]: Removed 31 assume(true) statements. [2021-10-29 05:22:28,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:28 BoogieIcfgContainer [2021-10-29 05:22:28,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:22:28,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:22:28,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:22:28,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:22:28,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:22:27" (1/3) ... [2021-10-29 05:22:28,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf89ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:22:28, skipping insertion in model container [2021-10-29 05:22:28,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:27" (2/3) ... [2021-10-29 05:22:28,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf89ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:22:28, skipping insertion in model container [2021-10-29 05:22:28,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:28" (3/3) ... [2021-10-29 05:22:28,923 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2021-10-29 05:22:28,930 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:22:28,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:22:28,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:22:28,930 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:22:28,972 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,973 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,974 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,974 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,975 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,976 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,976 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,976 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,977 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,977 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,977 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,978 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,979 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,979 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,979 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,979 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,980 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,980 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,980 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,981 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,982 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,983 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,984 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,985 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,990 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,991 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,991 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,991 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,991 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,992 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,994 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,995 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,995 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,995 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,996 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,998 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,998 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,998 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,998 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:28,999 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:22:29,006 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-29 05:22:29,062 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:22:29,070 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:22:29,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-29 05:22:29,090 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:22:29,103 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 162 transitions, 348 flow [2021-10-29 05:22:29,107 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 162 transitions, 348 flow [2021-10-29 05:22:29,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 162 transitions, 348 flow [2021-10-29 05:22:29,218 INFO L129 PetriNetUnfolder]: 7/159 cut-off events. [2021-10-29 05:22:29,219 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-29 05:22:29,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 159 events. 7/159 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 129. Up to 2 conditions per place. [2021-10-29 05:22:29,227 INFO L116 LiptonReduction]: Number of co-enabled transitions 1266 [2021-10-29 05:22:50,126 INFO L131 LiptonReduction]: Checked pairs total: 5407 [2021-10-29 05:22:50,127 INFO L133 LiptonReduction]: Total number of compositions: 150 [2021-10-29 05:22:50,155 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 36 transitions, 96 flow [2021-10-29 05:22:50,220 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 549 states, 548 states have (on average 2.704379562043796) internal successors, (1482), 548 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:22:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 549 states, 548 states have (on average 2.704379562043796) internal successors, (1482), 548 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:22:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:22:50,255 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:50,256 INFO L513 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] [2021-10-29 05:22:50,257 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-29 05:22:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash 649194798, now seen corresponding path program 1 times [2021-10-29 05:22:50,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:50,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030323974] [2021-10-29 05:22:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:50,284 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:50,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:50,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:50,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:22:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:50,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:22:50,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:50,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:50,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:50,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030323974] [2021-10-29 05:22:50,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030323974] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:50,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:50,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:22:50,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871848007] [2021-10-29 05:22:50,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:22:50,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:50,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:22:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:50,918 INFO L87 Difference]: Start difference. First operand has 549 states, 548 states have (on average 2.704379562043796) internal successors, (1482), 548 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:22:50,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:50,947 INFO L93 Difference]: Finished difference Result 2 states and 2 transitions. [2021-10-29 05:22:50,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:22:50,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-29 05:22:50,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:50,957 INFO L225 Difference]: With dead ends: 2 [2021-10-29 05:22:50,957 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:22:50,959 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:22:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:22:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:22:50,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:22:50,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-10-29 05:22:50,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:50,990 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:22:50,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:22:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:22:50,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:22:50,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:22:50,995 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:22:50,995 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 05:22:50,996 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 05:22:51,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:51,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:51,214 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 05:22:51,217 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:22:51,217 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:22:51,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:22:51 BasicIcfg [2021-10-29 05:22:51,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:22:51,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:22:51,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:22:51,222 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:22:51,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:28" (3/4) ... [2021-10-29 05:22:51,227 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:22:51,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-29 05:22:51,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-29 05:22:51,235 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-29 05:22:51,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-29 05:22:51,246 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:22:51,246 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:22:51,247 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:22:51,345 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:22:51,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:22:51,349 INFO L168 Benchmark]: Toolchain (without parser) took 24001.27 ms. Allocated memory was 62.9 MB in the beginning and 127.9 MB in the end (delta: 65.0 MB). Free memory was 42.4 MB in the beginning and 96.0 MB in the end (delta: -53.6 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:51,350 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 44.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:51,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.01 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 42.5 MB in the end (delta: -347.1 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:51,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.39 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:51,352 INFO L168 Benchmark]: Boogie Preprocessor took 57.29 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:51,353 INFO L168 Benchmark]: RCFGBuilder took 986.24 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 38.5 MB in the beginning and 60.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:51,353 INFO L168 Benchmark]: TraceAbstraction took 22305.20 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 59.7 MB in the beginning and 100.7 MB in the end (delta: -41.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:51,355 INFO L168 Benchmark]: Witness Printer took 125.61 ms. Allocated memory is still 127.9 MB. Free memory was 99.7 MB in the beginning and 96.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:51,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 44.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.01 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 42.5 MB in the end (delta: -347.1 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.39 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.29 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 986.24 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 38.5 MB in the beginning and 60.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22305.20 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 59.7 MB in the beginning and 100.7 MB in the end (delta: -41.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 125.61 ms. Allocated memory is still 127.9 MB. Free memory was 99.7 MB in the beginning and 96.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.0s, 165 PlacesBefore, 45 PlacesAfterwards, 162 TransitionsBefore, 36 TransitionsAfterwards, 1266 CoEnabledTransitionPairs, 7 FixpointIterations, 102 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 0 ConcurrentYvCompositions, 6 ChoiceCompositions, 150 TotalNumberOfCompositions, 5407 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2559, positive: 2300, positive conditional: 0, positive unconditional: 2300, negative: 259, negative conditional: 0, negative unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 916, positive: 871, positive conditional: 0, positive unconditional: 871, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 916, positive: 862, positive conditional: 0, positive unconditional: 862, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 565, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 537, negative conditional: 0, negative unconditional: 537, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2559, positive: 1429, positive conditional: 0, positive unconditional: 1429, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 916, unknown conditional: 0, unknown unconditional: 916] , Statistics on independence cache: Total cache size (in pairs): 216, Positive cache size: 192, Positive conditional cache size: 0, Positive unconditional cache size: 192, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 161]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 191 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 22.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 21.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=549occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 9 NumberOfNonLiveVariables, 128 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:22:51,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0699245-ea85-4a0b-9b17-deb2833fcd20/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...