./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF --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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:44:19,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:44:19,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:44:19,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:44:19,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:44:19,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:44:19,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:44:19,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:44:19,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:44:19,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:44:19,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:44:19,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:44:19,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:44:19,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:44:19,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:44:19,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:44:19,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:44:19,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:44:19,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:44:19,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:44:19,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:44:19,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:44:19,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:44:19,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:44:19,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:44:19,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:44:19,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:44:19,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:44:19,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:44:19,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:44:19,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:44:19,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:44:19,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:44:19,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:44:19,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:44:19,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:44:19,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:44:19,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:44:19,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:44:19,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:44:19,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:44:19,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:44:19,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:44:19,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:44:19,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:44:19,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:44:19,524 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:44:19,524 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:44:19,524 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:44:19,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:44:19,531 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:44:19,531 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:44:19,532 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:44:19,533 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:44:19,533 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:44:19,533 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:44:19,533 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:44:19,534 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:44:19,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:44:19,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:44:19,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:44:19,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:44:19,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:44:19,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:44:19,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:44:19,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:44:19,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:44:19,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:44:19,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:44:19,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:44:19,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:44:19,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:44:19,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:44:19,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:44:19,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:44:19,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:44:19,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:44:19,540 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:44:19,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:44:19,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:44:19,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:44:19,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:44:19,541 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_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2021-11-12 23:44:19,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:44:19,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:44:19,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:44:19,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:44:19,858 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:44:19,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-12 23:44:19,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/a6e963286/27e462959ffd421e962207b37ea30414/FLAG2cd4cbb26 [2021-11-12 23:44:20,397 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:44:20,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-12 23:44:20,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/a6e963286/27e462959ffd421e962207b37ea30414/FLAG2cd4cbb26 [2021-11-12 23:44:20,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/a6e963286/27e462959ffd421e962207b37ea30414 [2021-11-12 23:44:20,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:44:20,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:44:20,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:20,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:44:20,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:44:20,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:20" (1/1) ... [2021-11-12 23:44:20,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3c18e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:20, skipping insertion in model container [2021-11-12 23:44:20,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:20" (1/1) ... [2021-11-12 23:44:20,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:44:20,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:44:21,014 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_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-12 23:44:21,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:21,034 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) [2021-11-12 23:44:21,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48831ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:21, skipping insertion in model container [2021-11-12 23:44:21,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:21,036 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:44:21,038 INFO L158 Benchmark]: Toolchain (without parser) took 272.40ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 47.5MB in the beginning and 83.6MB in the end (delta: -36.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:44:21,039 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:44:21,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.67ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 47.2MB in the beginning and 84.1MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:44:21,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.67ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 47.2MB in the beginning and 84.1MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 153]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF --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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:44:23,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:44:23,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:44:23,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:44:23,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:44:23,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:44:23,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:44:23,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:44:23,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:44:23,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:44:23,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:44:23,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:44:23,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:44:23,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:44:23,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:44:23,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:44:23,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:44:23,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:44:23,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:44:23,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:44:23,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:44:23,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:44:23,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:44:23,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:44:23,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:44:23,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:44:23,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:44:23,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:44:23,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:44:23,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:44:23,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:44:23,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:44:23,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:44:23,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:44:23,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:44:23,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:44:23,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:44:23,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:44:23,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:44:23,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:44:23,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:44:23,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:44:23,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:44:23,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:44:23,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:44:23,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:44:23,473 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:44:23,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:44:23,473 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:44:23,473 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:44:23,474 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:44:23,474 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:44:23,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:44:23,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:44:23,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:44:23,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:44:23,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:44:23,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:44:23,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:44:23,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:44:23,476 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:44:23,476 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:44:23,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:44:23,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:44:23,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:44:23,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:44:23,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:44:23,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:44:23,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:44:23,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:44:23,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:44:23,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:44:23,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:44:23,479 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:44:23,479 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:44:23,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:44:23,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:44:23,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:44:23,480 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_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2021-11-12 23:44:23,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:44:23,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:44:23,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:44:23,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:44:23,841 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:44:23,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-12 23:44:23,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/5fc7e7aff/4a2cca07b0f746cca7781c09a864dc34/FLAG7da983f15 [2021-11-12 23:44:24,378 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:44:24,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-11-12 23:44:24,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/5fc7e7aff/4a2cca07b0f746cca7781c09a864dc34/FLAG7da983f15 [2021-11-12 23:44:24,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/data/5fc7e7aff/4a2cca07b0f746cca7781c09a864dc34 [2021-11-12 23:44:24,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:44:24,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:44:24,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:24,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:44:24,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:44:24,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:24" (1/1) ... [2021-11-12 23:44:24,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a35b930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:24, skipping insertion in model container [2021-11-12 23:44:24,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:24" (1/1) ... [2021-11-12 23:44:24,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:44:24,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:44:25,158 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_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-12 23:44:25,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:25,181 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:44:25,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:44:25,203 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_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-12 23:44:25,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:25,213 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:44:25,241 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_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-11-12 23:44:25,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:25,266 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:44:25,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25 WrapperNode [2021-11-12 23:44:25,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:25,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:44:25,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:44:25,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:44:25,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:44:25,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:44:25,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:44:25,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:44:25,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:44:25,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:44:25,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:44:25,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:44:25,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (1/1) ... [2021-11-12 23:44:25,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:44:25,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:44:25,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:44:25,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:44:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:44:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:44:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:44:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 23:44:25,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 23:44:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 23:44:25,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 23:44:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 23:44:25,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 23:44:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-12 23:44:25,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-12 23:44:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 23:44:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 23:44:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:44:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:44:25,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:44:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:44:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:44:25,494 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:44:26,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:44:26,491 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-12 23:44:26,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:44:26 BoogieIcfgContainer [2021-11-12 23:44:26,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:44:26,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:44:26,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:44:26,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:44:26,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:44:24" (1/3) ... [2021-11-12 23:44:26,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3aca47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:44:26, skipping insertion in model container [2021-11-12 23:44:26,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:25" (2/3) ... [2021-11-12 23:44:26,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3aca47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:44:26, skipping insertion in model container [2021-11-12 23:44:26,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:44:26" (3/3) ... [2021-11-12 23:44:26,502 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2021-11-12 23:44:26,508 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:44:26,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:44:26,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:44:26,508 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:44:26,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,609 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,609 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,609 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,609 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,609 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,610 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,611 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,612 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,612 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,612 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,612 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,624 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,627 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,627 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,627 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,629 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,629 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,629 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,629 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,629 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,629 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,629 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,630 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,630 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,630 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,631 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,631 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,631 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,650 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,656 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,656 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,656 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,656 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,656 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,659 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,659 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,660 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,661 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,664 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,665 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,665 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,666 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,670 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,670 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,673 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,673 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,673 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,673 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,674 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,674 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,674 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,674 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,674 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~nondet17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,674 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,675 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,675 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,675 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,676 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,677 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,678 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,678 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,679 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,680 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,682 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,682 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,682 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,684 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,690 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:44:26,701 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-11-12 23:44:26,763 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:44:26,775 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:44:26,775 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-12 23:44:26,800 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:44:26,823 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 196 transitions, 436 flow [2021-11-12 23:44:26,827 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 196 transitions, 436 flow [2021-11-12 23:44:26,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 195 places, 196 transitions, 436 flow [2021-11-12 23:44:26,962 INFO L129 PetriNetUnfolder]: 14/181 cut-off events. [2021-11-12 23:44:26,962 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-12 23:44:26,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 181 events. 14/181 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 153. Up to 3 conditions per place. [2021-11-12 23:44:26,975 INFO L116 LiptonReduction]: Number of co-enabled transitions 2612 [2021-11-12 23:44:42,865 INFO L131 LiptonReduction]: Checked pairs total: 7466 [2021-11-12 23:44:42,865 INFO L133 LiptonReduction]: Total number of compositions: 175 [2021-11-12 23:44:42,873 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 49 transitions, 142 flow [2021-11-12 23:44:42,915 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 471 states, 470 states have (on average 3.3957446808510636) internal successors, (1596), 470 states have internal predecessors, (1596), 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) [2021-11-12 23:44:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 470 states have (on average 3.3957446808510636) internal successors, (1596), 470 states have internal predecessors, (1596), 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) [2021-11-12 23:44:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:44:42,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:42,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:42,949 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:42,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:42,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1373404156, now seen corresponding path program 1 times [2021-11-12 23:44:42,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:42,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017200278] [2021-11-12 23:44:42,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:42,968 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:42,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:42,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:43,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:44:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:43,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:44:43,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:43,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:43,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:43,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017200278] [2021-11-12 23:44:43,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017200278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:43,577 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:43,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:44:43,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449127186] [2021-11-12 23:44:43,579 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:43,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:44:43,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:43,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:44:43,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:44:43,615 INFO L87 Difference]: Start difference. First operand has 471 states, 470 states have (on average 3.3957446808510636) internal successors, (1596), 470 states have internal predecessors, (1596), 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 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-12 23:44:44,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:44,052 INFO L93 Difference]: Finished difference Result 1084 states and 3763 transitions. [2021-11-12 23:44:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:44,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-12 23:44:44,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:44,097 INFO L225 Difference]: With dead ends: 1084 [2021-11-12 23:44:44,097 INFO L226 Difference]: Without dead ends: 1065 [2021-11-12 23:44:44,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:44:44,103 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 34 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 289.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.21ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 378.61ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:44,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 47 Invalid, 159 Unknown, 0 Unchecked, 3.21ms Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 378.61ms Time] [2021-11-12 23:44:44,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-11-12 23:44:44,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 721. [2021-11-12 23:44:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 3.3930555555555557) internal successors, (2443), 720 states have internal predecessors, (2443), 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) [2021-11-12 23:44:44,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2443 transitions. [2021-11-12 23:44:44,235 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2443 transitions. Word has length 31 [2021-11-12 23:44:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:44,236 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2443 transitions. [2021-11-12 23:44:44,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-12 23:44:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2443 transitions. [2021-11-12 23:44:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:44:44,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:44,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:44,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:44,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:44,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:44,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:44,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1650215702, now seen corresponding path program 2 times [2021-11-12 23:44:44,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:44,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854288858] [2021-11-12 23:44:44,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:44:44,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:44,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:44,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:44,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:44:44,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 23:44:44,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:44:44,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:44:44,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:44,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:44,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:44,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:44,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854288858] [2021-11-12 23:44:44,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854288858] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:44,905 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:44,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:44:44,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757344295] [2021-11-12 23:44:44,905 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:44,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:44:44,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:44,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:44:44,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:44:44,907 INFO L87 Difference]: Start difference. First operand 721 states and 2443 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2021-11-12 23:44:45,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:45,337 INFO L93 Difference]: Finished difference Result 1084 states and 3758 transitions. [2021-11-12 23:44:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:45,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-12 23:44:45,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:45,353 INFO L225 Difference]: With dead ends: 1084 [2021-11-12 23:44:45,357 INFO L226 Difference]: Without dead ends: 1065 [2021-11-12 23:44:45,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:44:45,359 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 34 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 324.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 385.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:45,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 64 Invalid, 206 Unknown, 0 Unchecked, 3.09ms Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 385.27ms Time] [2021-11-12 23:44:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-11-12 23:44:45,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 725. [2021-11-12 23:44:45,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 724 states have (on average 3.388121546961326) internal successors, (2453), 724 states have internal predecessors, (2453), 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) [2021-11-12 23:44:45,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 2453 transitions. [2021-11-12 23:44:45,408 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 2453 transitions. Word has length 31 [2021-11-12 23:44:45,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:45,408 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 2453 transitions. [2021-11-12 23:44:45,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2021-11-12 23:44:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 2453 transitions. [2021-11-12 23:44:45,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-12 23:44:45,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:45,412 INFO L514 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] [2021-11-12 23:44:45,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:45,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:45,623 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash -879578162, now seen corresponding path program 1 times [2021-11-12 23:44:45,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:45,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211990250] [2021-11-12 23:44:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:45,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:45,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:45,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:45,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:44:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:45,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:44:45,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:45,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:46,154 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:46,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211990250] [2021-11-12 23:44:46,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211990250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:46,155 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:46,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-12 23:44:46,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673036311] [2021-11-12 23:44:46,155 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:46,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:44:46,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:46,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:44:46,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:44:46,157 INFO L87 Difference]: Start difference. First operand 725 states and 2453 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-11-12 23:44:46,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:46,875 INFO L93 Difference]: Finished difference Result 893 states and 2857 transitions. [2021-11-12 23:44:46,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:44:46,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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 [2021-11-12 23:44:46,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:46,881 INFO L225 Difference]: With dead ends: 893 [2021-11-12 23:44:46,882 INFO L226 Difference]: Without dead ends: 693 [2021-11-12 23:44:46,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:44:46,883 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 173 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 521.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.47ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 617.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:46,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 102 Invalid, 338 Unknown, 0 Unchecked, 3.47ms Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 617.64ms Time] [2021-11-12 23:44:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-11-12 23:44:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 655. [2021-11-12 23:44:46,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 3.40519877675841) internal successors, (2227), 654 states have internal predecessors, (2227), 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) [2021-11-12 23:44:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2227 transitions. [2021-11-12 23:44:46,913 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2227 transitions. Word has length 32 [2021-11-12 23:44:46,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:46,913 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 2227 transitions. [2021-11-12 23:44:46,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-11-12 23:44:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2227 transitions. [2021-11-12 23:44:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-12 23:44:46,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:46,917 INFO L514 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] [2021-11-12 23:44:46,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:44:47,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:44:47,129 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:47,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:47,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1762857884, now seen corresponding path program 2 times [2021-11-12 23:44:47,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:47,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653541282] [2021-11-12 23:44:47,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:44:47,130 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:47,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:47,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:47,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:44:47,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:44:47,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:44:47,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 23:44:47,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:47,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:47,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:47,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653541282] [2021-11-12 23:44:47,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653541282] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:47,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1597954537] [2021-11-12 23:44:47,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:44:47,879 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:44:47,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:44:47,885 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:44:47,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-12 23:44:48,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:44:48,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:44:48,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:44:48,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:48,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:48,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1597954537] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:48,640 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:44:48,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6, 6] total 17 [2021-11-12 23:44:48,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146060980] [2021-11-12 23:44:48,641 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:48,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:44:48,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:48,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:44:48,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:44:48,642 INFO L87 Difference]: Start difference. First operand 655 states and 2227 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-11-12 23:44:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:49,531 INFO L93 Difference]: Finished difference Result 1795 states and 5799 transitions. [2021-11-12 23:44:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:44:49,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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 [2021-11-12 23:44:49,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:49,549 INFO L225 Difference]: With dead ends: 1795 [2021-11-12 23:44:49,549 INFO L226 Difference]: Without dead ends: 1715 [2021-11-12 23:44:49,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:44:49,551 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 183 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 654.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.09ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 762.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:49,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 105 Invalid, 321 Unknown, 0 Unchecked, 4.09ms Time], IncrementalHoareTripleChecker [2 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 762.19ms Time] [2021-11-12 23:44:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-11-12 23:44:49,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1078. [2021-11-12 23:44:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 3.3871866295264623) internal successors, (3648), 1077 states have internal predecessors, (3648), 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) [2021-11-12 23:44:49,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 3648 transitions. [2021-11-12 23:44:49,625 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 3648 transitions. Word has length 32 [2021-11-12 23:44:49,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:49,626 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 3648 transitions. [2021-11-12 23:44:49,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-11-12 23:44:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 3648 transitions. [2021-11-12 23:44:49,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 23:44:49,631 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:49,631 INFO L514 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] [2021-11-12 23:44:49,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:49,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:50,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:44:50,043 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:50,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1291568097, now seen corresponding path program 1 times [2021-11-12 23:44:50,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:50,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163421820] [2021-11-12 23:44:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:50,045 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:50,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:50,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:50,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:44:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:50,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 23:44:50,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:50,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:50,637 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:50,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163421820] [2021-11-12 23:44:50,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163421820] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:50,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [919099033] [2021-11-12 23:44:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:50,637 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:44:50,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:44:50,638 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:44:50,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-12 23:44:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:50,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:44:50,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:51,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:51,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [919099033] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:51,197 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:44:51,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6, 6] total 17 [2021-11-12 23:44:51,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492982226] [2021-11-12 23:44:51,197 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:51,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:44:51,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:51,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:44:51,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:44:51,199 INFO L87 Difference]: Start difference. First operand 1078 states and 3648 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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) [2021-11-12 23:44:51,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:51,694 INFO L93 Difference]: Finished difference Result 859 states and 2563 transitions. [2021-11-12 23:44:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:44:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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 33 [2021-11-12 23:44:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:51,701 INFO L225 Difference]: With dead ends: 859 [2021-11-12 23:44:51,701 INFO L226 Difference]: Without dead ends: 657 [2021-11-12 23:44:51,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:44:51,702 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 125 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 345.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.03ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 414.03ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:51,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 60 Invalid, 205 Unknown, 0 Unchecked, 2.03ms Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 414.03ms Time] [2021-11-12 23:44:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-11-12 23:44:51,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 589. [2021-11-12 23:44:51,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 588 states have (on average 3.239795918367347) internal successors, (1905), 588 states have internal predecessors, (1905), 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) [2021-11-12 23:44:51,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 1905 transitions. [2021-11-12 23:44:51,728 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 1905 transitions. Word has length 33 [2021-11-12 23:44:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:51,728 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 1905 transitions. [2021-11-12 23:44:51,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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) [2021-11-12 23:44:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 1905 transitions. [2021-11-12 23:44:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-12 23:44:51,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:51,731 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-12 23:44:51,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:51,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:52,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:44:52,143 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:52,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:52,144 INFO L85 PathProgramCache]: Analyzing trace with hash 601158852, now seen corresponding path program 1 times [2021-11-12 23:44:52,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:52,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403219223] [2021-11-12 23:44:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:52,145 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:52,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:52,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:52,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:44:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:52,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 23:44:52,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:52,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:52,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:44:52,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:52,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403219223] [2021-11-12 23:44:52,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403219223] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:52,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1216834454] [2021-11-12 23:44:52,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:52,927 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:44:52,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:44:52,932 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:44:52,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-12 23:44:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:53,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:44:53,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:44:53,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:44:53,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1216834454] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:53,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182094819] [2021-11-12 23:44:53,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:53,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:44:53,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:44:53,838 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:44:53,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-12 23:44:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:53,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:44:53,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:54,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:44:54,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:44:54,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182094819] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:54,332 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:44:54,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 27 [2021-11-12 23:44:54,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74494556] [2021-11-12 23:44:54,332 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:44:54,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-12 23:44:54,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:54,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-12 23:44:54,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2021-11-12 23:44:54,334 INFO L87 Difference]: Start difference. First operand 589 states and 1905 transitions. Second operand has 27 states, 27 states have (on average 3.814814814814815) internal successors, (103), 27 states have internal predecessors, (103), 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) [2021-11-12 23:44:57,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:57,411 INFO L93 Difference]: Finished difference Result 2537 states and 8144 transitions. [2021-11-12 23:44:57,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-12 23:44:57,412 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.814814814814815) internal successors, (103), 27 states have internal predecessors, (103), 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 [2021-11-12 23:44:57,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:57,433 INFO L225 Difference]: With dead ends: 2537 [2021-11-12 23:44:57,434 INFO L226 Difference]: Without dead ends: 2393 [2021-11-12 23:44:57,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=570, Invalid=1880, Unknown=0, NotChecked=0, Total=2450 [2021-11-12 23:44:57,436 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 865 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1676.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.00ms SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1993.99ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:57,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 363 Invalid, 1283 Unknown, 0 Unchecked, 10.00ms Time], IncrementalHoareTripleChecker [95 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 1993.99ms Time] [2021-11-12 23:44:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2021-11-12 23:44:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 835. [2021-11-12 23:44:57,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 834 states have (on average 3.4256594724220624) internal successors, (2857), 834 states have internal predecessors, (2857), 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) [2021-11-12 23:44:57,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 2857 transitions. [2021-11-12 23:44:57,492 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 2857 transitions. Word has length 34 [2021-11-12 23:44:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:57,492 INFO L470 AbstractCegarLoop]: Abstraction has 835 states and 2857 transitions. [2021-11-12 23:44:57,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.814814814814815) internal successors, (103), 27 states have internal predecessors, (103), 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) [2021-11-12 23:44:57,493 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 2857 transitions. [2021-11-12 23:44:57,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-12 23:44:57,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:57,496 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-12 23:44:57,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:57,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:57,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:44:58,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:44:58,099 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:44:58,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:58,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1720662843, now seen corresponding path program 1 times [2021-11-12 23:44:58,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:44:58,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948361866] [2021-11-12 23:44:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:58,100 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:44:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:44:58,101 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:44:58,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:44:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:58,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:44:58,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:58,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:58,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:44:58,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:44:58,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948361866] [2021-11-12 23:44:58,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948361866] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:58,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1681934571] [2021-11-12 23:44:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:58,778 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:44:58,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:44:58,780 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:44:58,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-12 23:44:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:58,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:44:58,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:59,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:44:59,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:44:59,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1681934571] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:59,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236922294] [2021-11-12 23:44:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:59,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:44:59,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:44:59,583 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:44:59,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-12 23:44:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:59,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:44:59,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:44:59,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:44:59,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236922294] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:59,958 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:44:59,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 23 [2021-11-12 23:44:59,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371590512] [2021-11-12 23:44:59,959 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:44:59,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 23:44:59,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:44:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 23:44:59,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:44:59,960 INFO L87 Difference]: Start difference. First operand 835 states and 2857 transitions. Second operand has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 23 states have internal predecessors, (93), 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) [2021-11-12 23:45:01,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:01,854 INFO L93 Difference]: Finished difference Result 2303 states and 7627 transitions. [2021-11-12 23:45:01,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 23:45:01,854 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 23 states have internal predecessors, (93), 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 [2021-11-12 23:45:01,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:01,871 INFO L225 Difference]: With dead ends: 2303 [2021-11-12 23:45:01,872 INFO L226 Difference]: Without dead ends: 2247 [2021-11-12 23:45:01,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=350, Invalid=1132, Unknown=0, NotChecked=0, Total=1482 [2021-11-12 23:45:01,873 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 682 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1164.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.46ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1391.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:01,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 320 Invalid, 1083 Unknown, 0 Unchecked, 7.46ms Time], IncrementalHoareTripleChecker [85 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1391.37ms Time] [2021-11-12 23:45:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2021-11-12 23:45:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1125. [2021-11-12 23:45:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 3.3941281138790034) internal successors, (3815), 1124 states have internal predecessors, (3815), 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) [2021-11-12 23:45:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 3815 transitions. [2021-11-12 23:45:01,941 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 3815 transitions. Word has length 35 [2021-11-12 23:45:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:01,941 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 3815 transitions. [2021-11-12 23:45:01,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.043478260869565) internal successors, (93), 23 states have internal predecessors, (93), 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) [2021-11-12 23:45:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 3815 transitions. [2021-11-12 23:45:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-12 23:45:01,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:01,946 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-12 23:45:01,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:02,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:02,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:02,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:02,557 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-12 23:45:02,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:02,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2106955669, now seen corresponding path program 1 times [2021-11-12 23:45:02,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:45:02,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667854806] [2021-11-12 23:45:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:02,558 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:45:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:45:02,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:45:02,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:45:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:02,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-12 23:45:02,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:02,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 104 [2021-11-12 23:45:03,041 INFO L354 Elim1Store]: treesize reduction 163, result has 15.1 percent of original size [2021-11-12 23:45:03,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 39 [2021-11-12 23:52:53,052 WARN L227 SmtUtils]: Spent 7.69m on a formula simplification. DAG size of input: 376 DAG size of output: 200 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:52:53,055 INFO L354 Elim1Store]: treesize reduction 1518, result has 31.1 percent of original size [2021-11-12 23:52:53,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 106 treesize of output 725 [2021-11-12 23:54:25,106 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-12 23:54:25,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:54:25,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667854806] [2021-11-12 23:54:25,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/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") [2021-11-12 23:54:25,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1087868546] [2021-11-12 23:54:25,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:54:25,108 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:54:25,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:54:25,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-12 23:54:25,116 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:54:25,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-12 23:54:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:54:25,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-12 23:54:25,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:54:25,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-12 23:54:25,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933619542] [2021-11-12 23:54:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:54:25,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:54:25,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:54:25,664 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:54:25,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-12 23:54:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:54:25,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-12 23:54:25,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:54:25,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-12 23:54:25,837 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:54:25,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-12 23:54:25,837 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-12 23:54:25,837 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-12 23:54:25,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-11-12 23:54:25,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2INUSE_VIOLATION (5 of 7 remaining) [2021-11-12 23:54:25,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5INUSE_VIOLATION (4 of 7 remaining) [2021-11-12 23:54:25,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 7 remaining) [2021-11-12 23:54:25,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2021-11-12 23:54:25,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork0Err1INUSE_VIOLATION (1 of 7 remaining) [2021-11-12 23:54:25,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork0Err4INUSE_VIOLATION (0 of 7 remaining) [2021-11-12 23:54:25,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:54:26,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:54:26,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:54:26,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c4d7a9-563e-4a99-b100-3ea56149cc8e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:54:26,450 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2021-11-12 23:54:26,453 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:54:26,453 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:54:26,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:54:26 BasicIcfg [2021-11-12 23:54:26,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:54:26,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:54:26,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:54:26,475 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:54:26,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:44:26" (3/4) ... [2021-11-12 23:54:26,479 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 23:54:26,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:54:26,479 INFO L158 Benchmark]: Toolchain (without parser) took 601675.68ms. Allocated memory was 60.8MB in the beginning and 100.7MB in the end (delta: 39.8MB). Free memory was 40.9MB in the beginning and 28.7MB in the end (delta: 12.3MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2021-11-12 23:54:26,480 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:54:26,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.22ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 39.3MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:54:26,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.24ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 37.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:54:26,481 INFO L158 Benchmark]: Boogie Preprocessor took 44.19ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 34.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:54:26,481 INFO L158 Benchmark]: RCFGBuilder took 1120.21ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 34.9MB in the beginning and 44.3MB in the end (delta: -9.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-11-12 23:54:26,482 INFO L158 Benchmark]: TraceAbstraction took 599978.92ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.8MB in the beginning and 29.5MB in the end (delta: 14.3MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2021-11-12 23:54:26,482 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 100.7MB. Free memory was 29.5MB in the beginning and 28.7MB in the end (delta: 828.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:54:26,484 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.22ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 39.3MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.24ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 37.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.19ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 34.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1120.21ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 34.9MB in the beginning and 44.3MB in the end (delta: -9.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 599978.92ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.8MB in the beginning and 29.5MB in the end (delta: 14.3MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 100.7MB. Free memory was 29.5MB in the beginning and 28.7MB in the end (delta: 828.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.0s, 195 PlacesBefore, 56 PlacesAfterwards, 196 TransitionsBefore, 49 TransitionsAfterwards, 2612 CoEnabledTransitionPairs, 7 FixpointIterations, 104 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 9 ConcurrentYvCompositions, 8 ChoiceCompositions, 175 TotalNumberOfCompositions, 7466 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4795, positive: 4586, positive conditional: 0, positive unconditional: 4586, negative: 209, negative conditional: 0, negative unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1937, positive: 1894, positive conditional: 0, positive unconditional: 1894, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1937, positive: 1888, positive conditional: 0, positive unconditional: 1888, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1055, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 1035, negative conditional: 0, negative unconditional: 1035, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4795, positive: 2692, positive conditional: 0, positive unconditional: 2692, negative: 166, negative conditional: 0, negative unconditional: 166, unknown: 1937, unknown conditional: 0, unknown unconditional: 1937] , Statistics on independence cache: Total cache size (in pairs): 280, Positive cache size: 260, Positive conditional cache size: 0, Positive unconditional cache size: 260, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 144]: 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* X_0; [L42] 0 int n_1, s_2, i_3, t_4, t_5, s_6, i_7, t_8; [L123] 0 pthread_t t1, t4; [L126] 0 n_1 = __VERIFIER_nondet_int() [L127] 0 s_2 = __VERIFIER_nondet_int() [L128] 0 i_3 = __VERIFIER_nondet_int() [L129] 0 t_4 = __VERIFIER_nondet_int() [L130] 0 t_5 = __VERIFIER_nondet_int() [L131] 0 s_6 = __VERIFIER_nondet_int() [L132] 0 i_7 = __VERIFIER_nondet_int() [L133] 0 t_8 = __VERIFIER_nondet_int() [L134] CALL 0 assume_abort_if_not(n_1 < 2147483647) [L38] COND TRUE 0 !cond [L134] RET 0 assume_abort_if_not(n_1 < 2147483647) [L135] CALL, EXPR 0 create_fresh_int_array(n_1 + 1) [L150] CALL 0 assume_abort_if_not(size >= 0) [L38] COND FALSE 0 !(!cond) [L150] RET 0 assume_abort_if_not(size >= 0) [L151] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L38] COND TRUE 0 !cond [L151] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L153] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L154] 0 int i = 0; [L154] COND TRUE 0 i < size [L155] 0 arr[i] = __VERIFIER_nondet_int() [L154] 0 i++ [L154] COND TRUE 0 i < size [L155] 0 arr[i] = __VERIFIER_nondet_int() [L154] 0 i++ [L157] 0 return arr; [L135] RET, EXPR 0 create_fresh_int_array(n_1 + 1) [L135] 0 X_0 = create_fresh_int_array(n_1 + 1) [L138] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L84] 1 pthread_t t2, t3; [L87] 1 i_3 = 0 [L88] 1 s_2 = 0 [L91] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) [L48] COND TRUE 2 __VERIFIER_nondet_bool() [L50] CALL 2 assume_abort_if_not( i_3 < n_1 ) [L38] COND TRUE 2 !cond [L50] RET 2 assume_abort_if_not( i_3 < n_1 ) [L51] 2 i_3++ [L52] EXPR 2 X_0[i_3] [L52] 2 t_4 = X_0[i_3] [L55] CALL, EXPR 2 plus(s_2, t_4) [L161] CALL 2 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L38] COND TRUE 2 !cond [L161] RET 2 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L162] CALL 2 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND TRUE 2 !cond [L162] RET 2 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L163] 2 return a + b; [L55] RET, EXPR 2 plus(s_2, t_4) [L55] 2 s_2 = plus(s_2, t_4) [L59] CALL 2 assume_abort_if_not( !( i_3 < n_1 ) ) [L38] COND FALSE 2 !(!cond) [L59] RET 2 assume_abort_if_not( !( i_3 < n_1 ) ) [L62] 2 return 0; [L139] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L101] 3 i_7 = 0 [L102] 3 s_6 = 0 [L105] COND TRUE 3 __VERIFIER_nondet_bool() [L107] CALL 3 assume_abort_if_not( i_7 < n_1 ) [L38] COND FALSE 3 !(!cond) [L107] RET 3 assume_abort_if_not( i_7 < n_1 ) [L108] 3 i_7++ [L109] EXPR 3 X_0[i_7] [L109] 3 t_8 = X_0[i_7] [L112] CALL, EXPR 3 plus(s_6, t_8) [L161] CALL 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L38] COND FALSE 3 !(!cond) [L161] RET 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L162] CALL 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 3 !(!cond) [L162] RET 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L163] 3 return a + b; [L112] RET, EXPR 3 plus(s_6, t_8) [L112] 3 s_6 = plus(s_6, t_8) [L105] COND FALSE 3 !(__VERIFIER_nondet_bool()) [L116] CALL 3 assume_abort_if_not( !( i_7 < n_1 ) ) [L38] COND FALSE 3 !(!cond) [L116] RET 3 assume_abort_if_not( !( i_7 < n_1 ) ) [L119] 3 return 0; [L92] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) [L66] COND FALSE 4 !(__VERIFIER_nondet_bool()) [L77] CALL 4 assume_abort_if_not( !( i_3 < n_1 ) ) [L38] COND FALSE 4 !(!cond) [L77] RET 4 assume_abort_if_not( !( i_3 < n_1 ) ) [L80] 4 return 0; [L93] 1 \read(t2) [L93] FCALL, JOIN 2 pthread_join(t2, 0) [L94] 1 \read(t3) [L94] FCALL, JOIN 4 pthread_join(t3, 0) [L96] 1 return 0; [L96] 1 return 0; [L96] 1 return 0; [L140] 0 \read(t1) [L140] FCALL, JOIN 1 pthread_join(t1, 0) [L141] 0 \read(t4) [L141] FCALL, JOIN 3 pthread_join(t4, 0) [L143] CALL 0 assume_abort_if_not( !( s_2 == s_6 ) ) [L38] COND TRUE 0 !cond [L143] RET 0 assume_abort_if_not( !( s_2 == s_6 ) ) [L144] 0 reach_error() - UnprovableResult [Line: 92]: 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: 91]: 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: 138]: 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: 139]: 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: 92]: 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: 91]: 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, 234 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 599.7s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 16.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2096 SdHoareTripleChecker+Valid, 5943.10ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2096 mSDsluCounter, 1061 SdHoareTripleChecker+Invalid, 4977.12ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3025 mSDsCounter, 197 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3398 IncrementalHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 197 mSolverCounterUnsat, 143 mSDtfsCounter, 3398 mSolverCounterSat, 33.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 889 GetRequests, 748 SyntacticMatches, 2 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1039 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1125occurred in iteration=7, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 4107 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 568.5s InterpolantComputationTime, 467 NumberOfCodeBlocks, 467 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 836 ConstructedInterpolants, 0 QuantifiedInterpolants, 3377 SizeOfPredicates, 103 NumberOfNonLiveVariables, 1902 ConjunctsInSsa, 191 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 28/58 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN