./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs --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 95df583ae4ef67bacebb80ed873ea8ff26e8eb3f ............................................................................................................................................ 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_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs --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 95df583ae4ef67bacebb80ed873ea8ff26e8eb3f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:27:05,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:27:05,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:27:05,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:27:05,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:27:05,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:27:05,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:27:05,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:27:05,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:27:05,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:27:05,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:27:05,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:27:05,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:27:05,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:27:05,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:27:05,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:27:05,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:27:05,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:27:05,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:27:05,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:27:05,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:27:05,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:27:05,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:27:05,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:27:05,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:27:05,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:27:05,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:27:05,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:27:05,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:27:05,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:27:05,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:27:05,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:27:05,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:27:05,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:27:05,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:27:05,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:27:05,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:27:05,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:27:05,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:27:05,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:27:05,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:27:05,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:27:05,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:27:05,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:27:05,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:27:05,709 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:27:05,709 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:27:05,710 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:27:05,710 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:27:05,710 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:27:05,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:27:05,711 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:27:05,711 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:27:05,711 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:27:05,711 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:27:05,712 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:27:05,712 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:27:05,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:27:05,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:27:05,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:27:05,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:27:05,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:27:05,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:27:05,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:27:05,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:27:05,714 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:27:05,715 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:27:05,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:27:05,715 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:27:05,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:27:05,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:27:05,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:27:05,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:27:05,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:27:05,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:27:05,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:27:05,717 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:27:05,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:27:05,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:27:05,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:27:05,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:27:05,718 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_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95df583ae4ef67bacebb80ed873ea8ff26e8eb3f [2021-10-16 02:27:05,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:27:06,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:27:06,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:27:06,008 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:27:06,009 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:27:06,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-16 02:27:06,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/d367e2d05/0c15fa08548547e78f9960d31d0e7627/FLAG1e19f880b [2021-10-16 02:27:06,639 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:27:06,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-16 02:27:06,658 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/d367e2d05/0c15fa08548547e78f9960d31d0e7627/FLAG1e19f880b [2021-10-16 02:27:06,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/d367e2d05/0c15fa08548547e78f9960d31d0e7627 [2021-10-16 02:27:06,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:27:06,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:27:06,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:06,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:27:06,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:27:06,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:06" (1/1) ... [2021-10-16 02:27:06,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75846521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:06, skipping insertion in model container [2021-10-16 02:27:06,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:06" (1/1) ... [2021-10-16 02:27:07,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:27:07,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:27:07,254 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_adec9c08-056a-4e01-9a21-a36e4d3c34e1/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-16 02:27:07,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:07,272 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) [2021-10-16 02:27:07,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f566da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:07, skipping insertion in model container [2021-10-16 02:27:07,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:07,274 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:27:07,275 INFO L168 Benchmark]: Toolchain (without parser) took 299.27 ms. Allocated memory is still 111.1 MB. Free memory was 69.6 MB in the beginning and 85.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:07,276 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 86.0 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:27:07,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.30 ms. Allocated memory is still 111.1 MB. Free memory was 69.4 MB in the beginning and 85.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:07,279 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 111.1 MB. Free memory was 86.0 MB in the beginning and 86.0 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.30 ms. Allocated memory is still 111.1 MB. Free memory was 69.4 MB in the beginning and 85.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 138]: 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-5709675 [2021-10-16 02:27:09,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:27:09,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:27:09,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:27:09,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:27:09,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:27:09,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:27:09,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:27:09,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:27:09,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:27:09,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:27:09,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:27:09,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:27:09,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:27:09,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:27:09,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:27:09,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:27:09,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:27:09,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:27:09,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:27:09,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:27:09,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:27:09,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:27:09,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:27:09,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:27:09,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:27:09,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:27:09,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:27:09,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:27:09,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:27:09,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:27:09,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:27:09,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:27:09,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:27:09,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:27:09,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:27:09,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:27:09,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:27:09,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:27:09,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:27:09,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:27:09,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:27:09,693 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:27:09,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:27:09,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:27:09,694 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:27:09,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:27:09,695 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:27:09,695 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:27:09,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:27:09,695 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:27:09,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:27:09,696 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:27:09,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:27:09,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:27:09,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:27:09,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:27:09,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:27:09,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:27:09,697 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:27:09,698 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:27:09,698 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:27:09,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:27:09,698 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:27:09,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:27:09,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:27:09,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:27:09,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:27:09,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:27:09,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:27:09,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:27:09,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:27:09,700 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:27:09,700 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:27:09,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:27:09,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:27:09,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:27:09,701 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_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95df583ae4ef67bacebb80ed873ea8ff26e8eb3f [2021-10-16 02:27:10,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:27:10,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:27:10,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:27:10,085 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:27:10,085 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:27:10,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-16 02:27:10,161 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/c16a8967b/f477bf058c90471ca6a4a2803dad6e36/FLAG8e7bb71c8 [2021-10-16 02:27:10,596 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:27:10,596 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-16 02:27:10,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/c16a8967b/f477bf058c90471ca6a4a2803dad6e36/FLAG8e7bb71c8 [2021-10-16 02:27:11,013 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/data/c16a8967b/f477bf058c90471ca6a4a2803dad6e36 [2021-10-16 02:27:11,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:27:11,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:27:11,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:11,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:27:11,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:27:11,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7205ac3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11, skipping insertion in model container [2021-10-16 02:27:11,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:27:11,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:27:11,329 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_adec9c08-056a-4e01-9a21-a36e4d3c34e1/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-16 02:27:11,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:11,364 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:27:11,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:27:11,415 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_adec9c08-056a-4e01-9a21-a36e4d3c34e1/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-16 02:27:11,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:11,423 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:27:11,449 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_adec9c08-056a-4e01-9a21-a36e4d3c34e1/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-16 02:27:11,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:11,469 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:27:11,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11 WrapperNode [2021-10-16 02:27:11,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:11,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:27:11,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:27:11,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:27:11,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:27:11,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:27:11,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:27:11,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:27:11,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:27:11,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:27:11,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:27:11,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:27:11,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (1/1) ... [2021-10-16 02:27:11,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:27:11,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:27:11,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:27:11,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:27:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:27:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:27:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:27:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:27:11,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:27:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 02:27:11,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 02:27:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-16 02:27:11,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-16 02:27:11,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-16 02:27:11,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-16 02:27:11,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:27:11,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:27:11,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:27:11,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:27:11,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:27:11,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:27:11,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:27:11,666 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:27:12,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:27:12,609 INFO L299 CfgBuilder]: Removed 39 assume(true) statements. [2021-10-16 02:27:12,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:12 BoogieIcfgContainer [2021-10-16 02:27:12,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:27:12,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:27:12,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:27:12,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:27:12,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:27:11" (1/3) ... [2021-10-16 02:27:12,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be83621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:12, skipping insertion in model container [2021-10-16 02:27:12,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:11" (2/3) ... [2021-10-16 02:27:12,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be83621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:12, skipping insertion in model container [2021-10-16 02:27:12,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:12" (3/3) ... [2021-10-16 02:27:12,619 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2021-10-16 02:27:12,624 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:27:12,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:27:12,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:27:12,625 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:27:12,688 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,688 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,688 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,688 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,689 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,689 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,690 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,692 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,692 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,693 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,693 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,693 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,694 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,694 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,695 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,695 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,695 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,696 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,696 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,696 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,696 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,697 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,697 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,698 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,698 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,698 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,698 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,698 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,698 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,699 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,699 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,700 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,700 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,700 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,700 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,700 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,701 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,701 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,701 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,701 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,702 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,703 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,703 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,703 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,703 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,705 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,705 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,706 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,706 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,707 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,707 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,708 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,709 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,712 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,712 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,719 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,719 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,722 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,723 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,723 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,723 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,724 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,730 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,731 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,731 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,731 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,734 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,735 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,737 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,738 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,739 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:27:12,752 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-16 02:27:12,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:27:12,791 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, mConcurrency=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 [2021-10-16 02:27:12,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-16 02:27:12,810 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:27:12,819 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 205 transitions, 442 flow [2021-10-16 02:27:12,822 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 205 transitions, 442 flow [2021-10-16 02:27:12,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 205 transitions, 442 flow [2021-10-16 02:27:12,899 INFO L129 PetriNetUnfolder]: 18/201 cut-off events. [2021-10-16 02:27:12,899 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-16 02:27:12,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 201 events. 18/201 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 170. Up to 3 conditions per place. [2021-10-16 02:27:12,910 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-10-16 02:27:41,882 WARN L207 SmtUtils]: Spent 5.25 s on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2021-10-16 02:27:43,418 INFO L131 LiptonReduction]: Checked pairs total: 4953 [2021-10-16 02:27:43,418 INFO L133 LiptonReduction]: Total number of compositions: 198 [2021-10-16 02:27:43,426 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 41 transitions, 114 flow [2021-10-16 02:27:43,488 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 778 states, 777 states have (on average 3.7966537966537968) internal successors, (2950), 777 states have internal predecessors, (2950), 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) [2021-10-16 02:27:43,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 778 states, 777 states have (on average 3.7966537966537968) internal successors, (2950), 777 states have internal predecessors, (2950), 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) [2021-10-16 02:27:43,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-16 02:27:43,511 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:43,511 INFO L512 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] [2021-10-16 02:27:43,512 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:27:43,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:43,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1759001118, now seen corresponding path program 1 times [2021-10-16 02:27:43,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:43,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470593495] [2021-10-16 02:27:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:43,531 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:43,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:43,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:43,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:27:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:43,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:27:43,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:27:43,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:44,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:27:44,150 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:44,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470593495] [2021-10-16 02:27:44,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470593495] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:44,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:44,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-16 02:27:44,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651096103] [2021-10-16 02:27:44,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:27:44,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:27:44,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:27:44,175 INFO L87 Difference]: Start difference. First operand has 778 states, 777 states have (on average 3.7966537966537968) internal successors, (2950), 777 states have internal predecessors, (2950), 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 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-10-16 02:27:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:44,395 INFO L93 Difference]: Finished difference Result 1247 states and 4497 transitions. [2021-10-16 02:27:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:27:44,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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 26 [2021-10-16 02:27:44,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:44,429 INFO L225 Difference]: With dead ends: 1247 [2021-10-16 02:27:44,430 INFO L226 Difference]: Without dead ends: 760 [2021-10-16 02:27:44,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 76.0ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:27:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2021-10-16 02:27:44,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2021-10-16 02:27:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 3.496706192358366) internal successors, (2654), 759 states have internal predecessors, (2654), 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) [2021-10-16 02:27:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 2654 transitions. [2021-10-16 02:27:44,526 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 2654 transitions. Word has length 26 [2021-10-16 02:27:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:44,527 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 2654 transitions. [2021-10-16 02:27:44,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-10-16 02:27:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 2654 transitions. [2021-10-16 02:27:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-16 02:27:44,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:44,531 INFO L512 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] [2021-10-16 02:27:44,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:27:44,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:44,767 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:27:44,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:44,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1452379582, now seen corresponding path program 1 times [2021-10-16 02:27:44,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:44,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874134817] [2021-10-16 02:27:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:44,770 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:44,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:44,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:44,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:27:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:44,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:27:44,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:27:45,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:27:45,258 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:45,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874134817] [2021-10-16 02:27:45,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874134817] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:45,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:45,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:27:45,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340725628] [2021-10-16 02:27:45,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:27:45,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:45,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:27:45,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:45,261 INFO L87 Difference]: Start difference. First operand 760 states and 2654 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-16 02:27:45,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:45,289 INFO L93 Difference]: Finished difference Result 834 states and 2836 transitions. [2021-10-16 02:27:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:45,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 29 [2021-10-16 02:27:45,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:45,299 INFO L225 Difference]: With dead ends: 834 [2021-10-16 02:27:45,300 INFO L226 Difference]: Without dead ends: 834 [2021-10-16 02:27:45,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-10-16 02:27:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2021-10-16 02:27:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 833 states have (on average 3.404561824729892) internal successors, (2836), 833 states have internal predecessors, (2836), 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) [2021-10-16 02:27:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 2836 transitions. [2021-10-16 02:27:45,384 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 2836 transitions. Word has length 29 [2021-10-16 02:27:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:45,385 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 2836 transitions. [2021-10-16 02:27:45,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-16 02:27:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 2836 transitions. [2021-10-16 02:27:45,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:27:45,389 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:45,389 INFO L512 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] [2021-10-16 02:27:45,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:45,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:45,602 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:27:45,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:45,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1456352137, now seen corresponding path program 1 times [2021-10-16 02:27:45,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:45,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811039513] [2021-10-16 02:27:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:45,604 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:45,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:45,605 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:45,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:27:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:45,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:27:45,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:27:45,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:46,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:27:46,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:46,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811039513] [2021-10-16 02:27:46,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811039513] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:46,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:46,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:27:46,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899607794] [2021-10-16 02:27:46,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:27:46,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:46,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:27:46,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:46,118 INFO L87 Difference]: Start difference. First operand 834 states and 2836 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-10-16 02:27:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:46,149 INFO L93 Difference]: Finished difference Result 848 states and 2763 transitions. [2021-10-16 02:27:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:46,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 32 [2021-10-16 02:27:46,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:46,158 INFO L225 Difference]: With dead ends: 848 [2021-10-16 02:27:46,159 INFO L226 Difference]: Without dead ends: 786 [2021-10-16 02:27:46,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2021-10-16 02:27:46,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2021-10-16 02:27:46,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 3.299363057324841) internal successors, (2590), 785 states have internal predecessors, (2590), 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) [2021-10-16 02:27:46,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 2590 transitions. [2021-10-16 02:27:46,192 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 2590 transitions. Word has length 32 [2021-10-16 02:27:46,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:46,193 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 2590 transitions. [2021-10-16 02:27:46,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-10-16 02:27:46,193 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 2590 transitions. [2021-10-16 02:27:46,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-16 02:27:46,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:46,197 INFO L512 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] [2021-10-16 02:27:46,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:46,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:46,409 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:27:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:46,410 INFO L82 PathProgramCache]: Analyzing trace with hash 148723121, now seen corresponding path program 1 times [2021-10-16 02:27:46,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:46,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667226801] [2021-10-16 02:27:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:46,411 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:46,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:46,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:46,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:27:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:46,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:27:46,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:27:46,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:27:46,911 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:46,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667226801] [2021-10-16 02:27:46,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667226801] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:46,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:46,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-16 02:27:46,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617929510] [2021-10-16 02:27:46,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:27:46,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:46,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:27:46,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:27:46,914 INFO L87 Difference]: Start difference. First operand 786 states and 2590 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 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) [2021-10-16 02:27:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:47,011 INFO L93 Difference]: Finished difference Result 921 states and 2944 transitions. [2021-10-16 02:27:47,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:27:47,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 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 34 [2021-10-16 02:27:47,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:47,022 INFO L225 Difference]: With dead ends: 921 [2021-10-16 02:27:47,023 INFO L226 Difference]: Without dead ends: 787 [2021-10-16 02:27:47,023 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:27:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-10-16 02:27:47,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2021-10-16 02:27:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 3.296437659033079) internal successors, (2591), 786 states have internal predecessors, (2591), 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) [2021-10-16 02:27:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 2591 transitions. [2021-10-16 02:27:47,058 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 2591 transitions. Word has length 34 [2021-10-16 02:27:47,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:47,058 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 2591 transitions. [2021-10-16 02:27:47,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 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) [2021-10-16 02:27:47,059 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 2591 transitions. [2021-10-16 02:27:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-16 02:27:47,064 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:47,064 INFO L512 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] [2021-10-16 02:27:47,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:47,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:47,276 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:27:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:47,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1532443189, now seen corresponding path program 1 times [2021-10-16 02:27:47,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:47,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275521659] [2021-10-16 02:27:47,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:47,278 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:47,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:47,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:47,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:27:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:47,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:27:47,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:27:47,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:27:47,866 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:47,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275521659] [2021-10-16 02:27:47,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275521659] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:47,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:47,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:27:47,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237427461] [2021-10-16 02:27:47,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:27:47,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:27:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:27:47,868 INFO L87 Difference]: Start difference. First operand 787 states and 2591 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-10-16 02:27:48,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:48,001 INFO L93 Difference]: Finished difference Result 1119 states and 3579 transitions. [2021-10-16 02:27:48,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:27:48,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 35 [2021-10-16 02:27:48,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:48,010 INFO L225 Difference]: With dead ends: 1119 [2021-10-16 02:27:48,010 INFO L226 Difference]: Without dead ends: 788 [2021-10-16 02:27:48,011 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:27:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2021-10-16 02:27:48,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2021-10-16 02:27:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 787 states have (on average 3.2935196950444725) internal successors, (2592), 787 states have internal predecessors, (2592), 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) [2021-10-16 02:27:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2592 transitions. [2021-10-16 02:27:48,043 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2592 transitions. Word has length 35 [2021-10-16 02:27:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:48,043 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2592 transitions. [2021-10-16 02:27:48,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-10-16 02:27:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2592 transitions. [2021-10-16 02:27:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-16 02:27:48,046 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:48,047 INFO L512 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] [2021-10-16 02:27:48,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:48,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:48,259 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-16 02:27:48,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:48,260 INFO L82 PathProgramCache]: Analyzing trace with hash -512207034, now seen corresponding path program 1 times [2021-10-16 02:27:48,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:48,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815424275] [2021-10-16 02:27:48,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:48,260 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:48,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:48,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:48,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:27:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:48,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-16 02:27:48,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:51,118 INFO L354 Elim1Store]: treesize reduction 1262, result has 5.7 percent of original size [2021-10-16 02:27:51,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 90 treesize of output 110 [2021-10-16 02:31:36,433 WARN L207 SmtUtils]: Spent 3.67 m on a formula simplification. DAG size of input: 638 DAG size of output: 159 [2021-10-16 02:31:36,436 INFO L354 Elim1Store]: treesize reduction 3735, result has 12.6 percent of original size [2021-10-16 02:31:36,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 81 case distinctions, treesize of input 215 treesize of output 604 [2021-10-16 02:36:16,310 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-16 02:36:16,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:36:16,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815424275] [2021-10-16 02:36:16,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-16 02:36:16,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2135505521] [2021-10-16 02:36:16,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:36:16,312 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:36:16,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:36:16,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-16 02:36:16,319 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:36:16,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-16 02:36:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:36:17,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-16 02:36:17,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:36:17,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:36:17,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786273467] [2021-10-16 02:36:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:36:17,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:36:17,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:36:17,579 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:36:17,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-16 02:36:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:36:18,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 62 conjunts are in the unsatisfiable core [2021-10-16 02:36:18,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:36:18,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:36:18,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:36:18,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-16 02:36:18,030 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-16 02:36:18,031 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-16 02:36:18,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:36:18,039 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 02:36:18,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 02:36:18,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-16 02:36:18,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-16 02:36:18,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:36:18,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:36:18,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:36:18,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adec9c08-056a-4e01-9a21-a36e4d3c34e1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:36:18,660 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 02:36:18,660 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:36:18,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:36:18 BasicIcfg [2021-10-16 02:36:18,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:36:18,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:36:18,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:36:18,689 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:36:18,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:12" (3/4) ... [2021-10-16 02:36:18,697 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:36:18,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:36:18,704 INFO L168 Benchmark]: Toolchain (without parser) took 547672.50 ms. Allocated memory was 65.0 MB in the beginning and 119.5 MB in the end (delta: 54.5 MB). Free memory was 44.9 MB in the beginning and 51.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:18,704 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 65.0 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:36:18,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.09 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 44.3 MB in the end (delta: 374.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:18,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.54 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 42.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:18,708 INFO L168 Benchmark]: Boogie Preprocessor took 42.93 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 40.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:18,709 INFO L168 Benchmark]: RCFGBuilder took 1044.60 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 40.0 MB in the beginning and 45.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:18,710 INFO L168 Benchmark]: TraceAbstraction took 546074.91 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 45.3 MB in the beginning and 51.4 MB in the end (delta: -6.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:18,710 INFO L168 Benchmark]: Witness Printer took 8.77 ms. Allocated memory is still 119.5 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:36:18,716 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 65.0 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.09 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 44.3 MB in the end (delta: 374.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.54 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 42.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.93 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 40.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1044.60 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 40.0 MB in the beginning and 45.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 546074.91 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 45.3 MB in the beginning and 51.4 MB in the end (delta: -6.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Witness Printer took 8.77 ms. Allocated memory is still 119.5 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30596.9ms, 200 PlacesBefore, 49 PlacesAfterwards, 205 TransitionsBefore, 41 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 8 FixpointIterations, 121 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 7 ConcurrentYvCompositions, 13 ChoiceCompositions, 198 TotalNumberOfCompositions, 4953 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2734, positive: 2563, positive conditional: 0, positive unconditional: 2563, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1232, positive: 1193, positive conditional: 0, positive unconditional: 1193, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1232, positive: 1191, positive conditional: 0, positive unconditional: 1191, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1111, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 980, negative conditional: 0, negative unconditional: 980, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2734, positive: 1370, positive conditional: 0, positive unconditional: 1370, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 1232, unknown conditional: 0, unknown unconditional: 1232] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 139, Positive conditional cache size: 0, Positive unconditional cache size: 139, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 129]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L41] 0 int *queue1, *queue2; [L42] 0 int front1, back1, front2, back2, d1, d2, n1, n2, W; [L43] 0 _Bool v_assert; [L102] 0 pthread_t t1, t2, t3, t4; [L104] 0 W = __VERIFIER_nondet_int() [L38] COND FALSE 0 !(!cond) [L106] 0 n1 = __VERIFIER_nondet_int() [L107] 0 n2 = __VERIFIER_nondet_int() [L108] 0 front1 = __VERIFIER_nondet_int() [L109] 0 front2 = __VERIFIER_nondet_int() [L110] 0 back1 = front1 [L111] 0 back2 = front2 [L112] 0 v_assert = 1 [L38] COND TRUE 0 !cond [L38] COND FALSE 0 !(!cond) [L138] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L139] 0 int i = 0; [L139] COND TRUE 0 i < size [L140] 0 arr[i] = __VERIFIER_nondet_int() [L139] 0 i++ [L142] 0 return arr; [L113] 0 queue1 = create_fresh_int_array(n1) [L38] COND FALSE 0 !(!cond) [L38] COND TRUE 0 !cond [L138] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L139] 0 int i = 0; [L139] COND TRUE 0 i < size [L140] 0 arr[i] = __VERIFIER_nondet_int() [L139] 0 i++ [L142] 0 return arr; [L114] 0 queue2 = create_fresh_int_array(n2) [L38] COND TRUE 0 !cond [L119] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L48] 1 int w=W; [L48] COND TRUE 1 w>0 [L49] COND FALSE 1 !(!v_assert) [L38] COND FALSE 1 !(!cond) [L54] 1 queue1[back1] [L38] COND FALSE 1 !(!cond) [L55] 1 back1++ [L48] 1 w-- [L48] COND TRUE 1 w>0 [L49] COND TRUE 1 !v_assert [L59] 1 return 0; [L120] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L63] 2 int temp; [L64] COND TRUE 2 \read(v_assert) [L38] COND FALSE 2 !(!cond) [L67] EXPR 2 queue1[front1] [L67] 2 temp = queue1[front1] [L68] 2 front1++ [L38] COND FALSE 2 !(!cond) [L72] 2 queue2[back2] [L38] COND FALSE 2 !(!cond) [L73] 2 back2++ [L75] 2 d1 = d1 + temp [L121] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) [L122] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L123] 0 \read(t1) [L82] 3 int temp; [L123] FCALL, JOIN 1 pthread_join(t1, 0) [L124] 0 \read(t2) [L83] COND TRUE 3 \read(v_assert) [L38] COND FALSE 3 !(!cond) [L86] EXPR 3 queue2[front2] [L86] 3 temp = queue2[front2] [L87] 3 front2++ [L89] 3 d2 = d2 + temp [L96] 4 v_assert = (d2 <= 2*W) [L98] 4 return 0; [L83] COND FALSE 3 !(\read(v_assert)) [L92] 3 return 0; [L78] 2 return 0; [L124] FCALL, JOIN 2 pthread_join(t2, 0) [L125] 0 \read(t3) [L125] FCALL, JOIN 3 pthread_join(t3, 0) [L126] 0 \read(t4) [L126] FCALL, JOIN 4 pthread_join(t4, 0) [L38] COND TRUE 0 !cond [L129] 0 reach_error() - UnprovableResult [Line: 121]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 120]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 122]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 221 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 545872.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 41.4ms, AutomataDifference: 609.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30696.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 171 SDtfs, 166 SDslu, 357 SDs, 0 SdLazy, 87 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 307.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 305 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 198.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=834occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 268.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 102.4ms SsaConstructionTime, 436.0ms SatisfiabilityAnalysisTime, 1740.0ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 952 SizeOfPredicates, 25 NumberOfNonLiveVariables, 728 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 20/20 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...