./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 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33d98cf85818be37588e70d25fcca02cd2d7087b ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33d98cf85818be37588e70d25fcca02cd2d7087b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:41:15,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:41:15,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:41:15,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:41:15,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:41:15,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:41:15,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:41:15,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:41:15,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:41:15,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:41:15,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:41:15,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:41:15,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:41:15,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:41:15,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:41:15,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:41:15,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:41:15,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:41:15,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:41:15,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:41:15,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:41:15,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:41:15,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:41:15,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:41:15,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:41:15,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:41:15,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:41:15,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:41:15,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:41:15,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:41:15,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:41:15,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:41:15,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:41:15,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:41:15,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:41:15,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:41:15,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:41:15,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:41:15,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:41:15,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:41:15,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:41:15,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:41:15,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:41:15,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:41:15,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:41:15,444 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:41:15,445 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:41:15,445 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:41:15,445 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:41:15,445 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:41:15,446 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:41:15,446 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:41:15,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:41:15,446 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:41:15,447 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:41:15,447 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:41:15,447 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:41:15,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:41:15,456 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:41:15,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:41:15,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:41:15,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:41:15,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:41:15,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:41:15,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:41:15,459 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:41:15,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:41:15,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:41:15,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:41:15,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:41:15,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:41:15,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:41:15,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:41:15,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:41:15,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:41:15,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:41:15,465 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:41:15,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:41:15,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:41:15,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:41:15,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:41:15,468 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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d98cf85818be37588e70d25fcca02cd2d7087b [2021-10-16 02:41:15,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:41:15,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:41:15,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:41:15,847 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:41:15,848 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:41:15,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-10-16 02:41:15,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/cfe743459/f2c0c762a2224be1b8a7528dc5623db5/FLAG66f03fe6f [2021-10-16 02:41:16,500 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:41:16,500 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-10-16 02:41:16,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/cfe743459/f2c0c762a2224be1b8a7528dc5623db5/FLAG66f03fe6f [2021-10-16 02:41:16,860 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/cfe743459/f2c0c762a2224be1b8a7528dc5623db5 [2021-10-16 02:41:16,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:41:16,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:41:16,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:16,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:41:16,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:41:16,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:16" (1/1) ... [2021-10-16 02:41:16,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45525d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:16, skipping insertion in model container [2021-10-16 02:41:16,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:16" (1/1) ... [2021-10-16 02:41:16,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:41:16,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:41:17,187 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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3602,3615] [2021-10-16 02:41:17,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:17,225 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-16 02:41:17,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@636b00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:17, skipping insertion in model container [2021-10-16 02:41:17,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:17,227 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:41:17,230 INFO L168 Benchmark]: Toolchain (without parser) took 363.08 ms. Allocated memory is still 98.6 MB. Free memory was 64.5 MB in the beginning and 73.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:17,233 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:41:17,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.50 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 73.8 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:17,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.50 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 73.8 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 147]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:41:19,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:41:19,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:41:20,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:41:20,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:41:20,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:41:20,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:41:20,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:41:20,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:41:20,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:41:20,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:41:20,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:41:20,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:41:20,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:41:20,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:41:20,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:41:20,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:41:20,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:41:20,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:41:20,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:41:20,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:41:20,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:41:20,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:41:20,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:41:20,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:41:20,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:41:20,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:41:20,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:41:20,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:41:20,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:41:20,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:41:20,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:41:20,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:41:20,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:41:20,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:41:20,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:41:20,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:41:20,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:41:20,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:41:20,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:41:20,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:41:20,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:41:20,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:41:20,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:41:20,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:41:20,199 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:41:20,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:41:20,199 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:41:20,200 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:41:20,200 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:41:20,200 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:41:20,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:41:20,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:41:20,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:41:20,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:41:20,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:41:20,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:41:20,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:41:20,205 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:41:20,206 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:41:20,206 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:41:20,206 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:41:20,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:41:20,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:41:20,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:41:20,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:41:20,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:41:20,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:41:20,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:41:20,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:41:20,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:41:20,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:41:20,209 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:41:20,210 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:41:20,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:41:20,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:41:20,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:41:20,211 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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d98cf85818be37588e70d25fcca02cd2d7087b [2021-10-16 02:41:20,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:41:20,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:41:20,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:41:20,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:41:20,744 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:41:20,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-10-16 02:41:20,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/9ce13214f/467ac6a9107242bcbe9f39c15f72051e/FLAG8bc6056db [2021-10-16 02:41:21,445 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:41:21,446 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-10-16 02:41:21,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/9ce13214f/467ac6a9107242bcbe9f39c15f72051e/FLAG8bc6056db [2021-10-16 02:41:21,752 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/data/9ce13214f/467ac6a9107242bcbe9f39c15f72051e [2021-10-16 02:41:21,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:41:21,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:41:21,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:21,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:41:21,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:41:21,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:21" (1/1) ... [2021-10-16 02:41:21,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71916b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:21, skipping insertion in model container [2021-10-16 02:41:21,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:21" (1/1) ... [2021-10-16 02:41:21,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:41:21,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:41:22,168 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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3602,3615] [2021-10-16 02:41:22,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:22,230 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:41:22,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:41:22,292 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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3602,3615] [2021-10-16 02:41:22,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:22,321 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:41:22,390 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_be3cd443-f79d-4ea7-a6c3-d0007430eb54/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3602,3615] [2021-10-16 02:41:22,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:22,438 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:41:22,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22 WrapperNode [2021-10-16 02:41:22,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:22,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:41:22,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:41:22,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:41:22,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:41:22,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:41:22,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:41:22,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:41:22,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:41:22,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:41:22,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:41:22,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:41:22,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (1/1) ... [2021-10-16 02:41:22,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:41:22,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:41:22,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:41:22,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:41:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:41:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:41:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:41:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:41:22,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:41:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 02:41:22,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 02:41:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-16 02:41:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-16 02:41:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-16 02:41:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-16 02:41:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:41:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:41:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:41:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:41:22,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:41:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:41:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:41:22,768 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:41:24,280 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:41:24,280 INFO L299 CfgBuilder]: Removed 48 assume(true) statements. [2021-10-16 02:41:24,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:24 BoogieIcfgContainer [2021-10-16 02:41:24,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:41:24,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:41:24,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:41:24,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:41:24,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:41:21" (1/3) ... [2021-10-16 02:41:24,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f19115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:24, skipping insertion in model container [2021-10-16 02:41:24,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:22" (2/3) ... [2021-10-16 02:41:24,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f19115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:24, skipping insertion in model container [2021-10-16 02:41:24,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:24" (3/3) ... [2021-10-16 02:41:24,293 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2021-10-16 02:41:24,300 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:41:24,300 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:41:24,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:41:24,301 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:41:24,346 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,365 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,365 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,366 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,368 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,368 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,368 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,369 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,369 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,369 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,369 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,370 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,371 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,371 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,371 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,372 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,372 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,372 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,374 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,374 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,375 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,376 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,376 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,376 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,376 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,378 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,378 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,379 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,379 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,379 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,379 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,380 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,380 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,380 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,381 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,381 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,381 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,381 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,381 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,382 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,382 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,382 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,383 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,383 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,383 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,383 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,384 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,384 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,384 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,384 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,385 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,385 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,385 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,385 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,385 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,386 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,386 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,386 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,387 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,387 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,387 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,387 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,387 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,388 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,388 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,388 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,389 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,389 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,389 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,389 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,390 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,390 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,390 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,391 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,391 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,391 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,392 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,392 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,392 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,392 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,393 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,393 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,393 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,393 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,394 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,394 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,394 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,394 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,395 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,395 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,395 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,395 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,396 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,396 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,396 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,397 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,397 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,397 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,397 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,397 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,398 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,398 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,398 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,398 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,399 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,399 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,399 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,399 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,400 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,400 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,400 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,400 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,400 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,401 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,401 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,401 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,402 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,402 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,402 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,403 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,403 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,406 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,408 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,409 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,409 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,430 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,433 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,436 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,436 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,436 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,437 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,437 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,437 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,437 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,437 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,438 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,438 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,438 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,438 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,439 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,441 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,441 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,442 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,442 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,442 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,442 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,443 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,443 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,443 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,443 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,444 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,444 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,444 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,449 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,450 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,451 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,452 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,452 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,452 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,452 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,453 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,453 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,453 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,453 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,454 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,454 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,454 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,454 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:41:24,472 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-10-16 02:41:24,527 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:41:24,535 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:41:24,535 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 02:41:24,555 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:41:24,569 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 193 places, 197 transitions, 438 flow [2021-10-16 02:41:24,572 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 193 places, 197 transitions, 438 flow [2021-10-16 02:41:24,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 197 transitions, 438 flow [2021-10-16 02:41:24,668 INFO L129 PetriNetUnfolder]: 17/182 cut-off events. [2021-10-16 02:41:24,668 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-16 02:41:24,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 182 events. 17/182 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 206 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 152. Up to 3 conditions per place. [2021-10-16 02:41:24,702 INFO L116 LiptonReduction]: Number of co-enabled transitions 4072 [2021-10-16 02:41:43,214 INFO L131 LiptonReduction]: Checked pairs total: 10105 [2021-10-16 02:41:43,215 INFO L133 LiptonReduction]: Total number of compositions: 185 [2021-10-16 02:41:43,224 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 49 transitions, 142 flow [2021-10-16 02:41:43,280 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) [2021-10-16 02:41:43,287 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) [2021-10-16 02:41:43,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-16 02:41:43,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:43,314 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:43,315 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:43,322 INFO L82 PathProgramCache]: Analyzing trace with hash 915668543, now seen corresponding path program 1 times [2021-10-16 02:41:43,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:43,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916009725] [2021-10-16 02:41:43,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:43,339 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:43,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:43,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:43,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:41:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:41:43,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:41:43,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:43,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:44,136 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:44,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916009725] [2021-10-16 02:41:44,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916009725] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:44,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:44,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:41:44,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249875498] [2021-10-16 02:41:44,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:41:44,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:44,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:41:44,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:41:44,187 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 10.75) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:44,484 INFO L93 Difference]: Finished difference Result 1084 states and 3763 transitions. [2021-10-16 02:41:44,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:41:44,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-16 02:41:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:44,522 INFO L225 Difference]: With dead ends: 1084 [2021-10-16 02:41:44,523 INFO L226 Difference]: Without dead ends: 1065 [2021-10-16 02:41:44,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 20.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:41:44,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-10-16 02:41:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 721. [2021-10-16 02:41:44,661 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) [2021-10-16 02:41:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2443 transitions. [2021-10-16 02:41:44,670 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2443 transitions. Word has length 31 [2021-10-16 02:41:44,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:44,671 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2443 transitions. [2021-10-16 02:41:44,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:44,672 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2443 transitions. [2021-10-16 02:41:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-16 02:41:44,681 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:44,681 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:44,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:41:44,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:44,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:44,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:44,901 INFO L82 PathProgramCache]: Analyzing trace with hash 2145440741, now seen corresponding path program 2 times [2021-10-16 02:41:44,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:44,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491250489] [2021-10-16 02:41:44,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:41:44,902 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:44,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:44,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:44,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:41:45,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-16 02:41:45,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:41:45,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:41:45,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:45,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:45,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:45,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491250489] [2021-10-16 02:41:45,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491250489] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:45,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:45,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:41:45,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125713782] [2021-10-16 02:41:45,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:41:45,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:45,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:41:45,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:41:45,546 INFO L87 Difference]: Start difference. First operand 721 states and 2443 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:45,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:45,678 INFO L93 Difference]: Finished difference Result 1084 states and 3758 transitions. [2021-10-16 02:41:45,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:41:45,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-16 02:41:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:45,692 INFO L225 Difference]: With dead ends: 1084 [2021-10-16 02:41:45,692 INFO L226 Difference]: Without dead ends: 1065 [2021-10-16 02:41:45,693 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:41:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-10-16 02:41:45,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 725. [2021-10-16 02:41:45,736 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) [2021-10-16 02:41:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 2453 transitions. [2021-10-16 02:41:45,743 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 2453 transitions. Word has length 31 [2021-10-16 02:41:45,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:45,743 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 2453 transitions. [2021-10-16 02:41:45,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 2453 transitions. [2021-10-16 02:41:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:41:45,749 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:45,749 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:45,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:45,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:45,968 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:45,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:45,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1471181958, now seen corresponding path program 1 times [2021-10-16 02:41:45,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:45,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350148842] [2021-10-16 02:41:45,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:45,970 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:45,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:45,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:45,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:41:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:41:46,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:41:46,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:46,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:46,824 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:46,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350148842] [2021-10-16 02:41:46,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350148842] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:46,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:46,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-16 02:41:46,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071083454] [2021-10-16 02:41:46,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 02:41:46,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:46,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 02:41:46,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:41:46,828 INFO L87 Difference]: Start difference. First operand 725 states and 2453 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:47,310 INFO L93 Difference]: Finished difference Result 893 states and 2857 transitions. [2021-10-16 02:41:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:41:47,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-16 02:41:47,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:47,321 INFO L225 Difference]: With dead ends: 893 [2021-10-16 02:41:47,321 INFO L226 Difference]: Without dead ends: 693 [2021-10-16 02:41:47,322 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 204.5ms TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2021-10-16 02:41:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-10-16 02:41:47,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 655. [2021-10-16 02:41:47,351 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) [2021-10-16 02:41:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2227 transitions. [2021-10-16 02:41:47,358 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2227 transitions. Word has length 32 [2021-10-16 02:41:47,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:47,358 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 2227 transitions. [2021-10-16 02:41:47,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:47,359 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2227 transitions. [2021-10-16 02:41:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:41:47,363 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:47,363 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:47,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:47,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:47,590 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:47,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:47,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1257975242, now seen corresponding path program 2 times [2021-10-16 02:41:47,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:47,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419184099] [2021-10-16 02:41:47,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:41:47,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:47,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:47,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:47,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:41:47,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:41:47,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:41:47,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:41:47,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:48,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:48,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:48,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:48,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419184099] [2021-10-16 02:41:48,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419184099] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:48,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:48,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-16 02:41:48,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028377289] [2021-10-16 02:41:48,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 02:41:48,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:48,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 02:41:48,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:41:48,690 INFO L87 Difference]: Start difference. First operand 655 states and 2227 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:49,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:49,240 INFO L93 Difference]: Finished difference Result 827 states and 2718 transitions. [2021-10-16 02:41:49,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:41:49,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-16 02:41:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:49,254 INFO L225 Difference]: With dead ends: 827 [2021-10-16 02:41:49,254 INFO L226 Difference]: Without dead ends: 769 [2021-10-16 02:41:49,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 216.3ms TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:41:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2021-10-16 02:41:49,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 731. [2021-10-16 02:41:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 3.4136986301369863) internal successors, (2492), 730 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2492 transitions. [2021-10-16 02:41:49,295 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2492 transitions. Word has length 32 [2021-10-16 02:41:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:49,296 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 2492 transitions. [2021-10-16 02:41:49,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2492 transitions. [2021-10-16 02:41:49,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:41:49,302 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:49,303 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:49,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:49,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:49,517 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:49,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:49,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1384740146, now seen corresponding path program 3 times [2021-10-16 02:41:49,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:49,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808766719] [2021-10-16 02:41:49,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 02:41:49,519 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:49,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:49,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:49,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:41:49,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-16 02:41:49,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:41:49,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-16 02:41:49,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:50,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:50,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:50,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808766719] [2021-10-16 02:41:50,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808766719] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:41:50,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:41:50,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-10-16 02:41:50,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998973952] [2021-10-16 02:41:50,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:41:50,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:50,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:41:50,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:41:50,791 INFO L87 Difference]: Start difference. First operand 731 states and 2492 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:51,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:51,072 INFO L93 Difference]: Finished difference Result 805 states and 2704 transitions. [2021-10-16 02:41:51,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:41:51,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-16 02:41:51,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:51,083 INFO L225 Difference]: With dead ends: 805 [2021-10-16 02:41:51,084 INFO L226 Difference]: Without dead ends: 805 [2021-10-16 02:41:51,084 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 186.5ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:41:51,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-10-16 02:41:51,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 749. [2021-10-16 02:41:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 748 states have (on average 3.4344919786096257) internal successors, (2569), 748 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:51,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 2569 transitions. [2021-10-16 02:41:51,123 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 2569 transitions. Word has length 32 [2021-10-16 02:41:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:51,124 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 2569 transitions. [2021-10-16 02:41:51,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 2569 transitions. [2021-10-16 02:41:51,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:41:51,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:51,129 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:51,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:51,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:51,344 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:51,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:51,344 INFO L82 PathProgramCache]: Analyzing trace with hash -2002949484, now seen corresponding path program 4 times [2021-10-16 02:41:51,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:51,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542495274] [2021-10-16 02:41:51,345 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 02:41:51,345 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:51,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:51,346 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:51,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:41:51,647 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 02:41:51,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:41:51,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:41:51,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:52,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:52,271 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:52,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542495274] [2021-10-16 02:41:52,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542495274] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:52,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:52,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-16 02:41:52,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229487600] [2021-10-16 02:41:52,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 02:41:52,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:52,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 02:41:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:41:52,273 INFO L87 Difference]: Start difference. First operand 749 states and 2569 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:52,807 INFO L93 Difference]: Finished difference Result 959 states and 3216 transitions. [2021-10-16 02:41:52,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:41:52,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-16 02:41:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:52,821 INFO L225 Difference]: With dead ends: 959 [2021-10-16 02:41:52,821 INFO L226 Difference]: Without dead ends: 899 [2021-10-16 02:41:52,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 206.0ms TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:41:52,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2021-10-16 02:41:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 667. [2021-10-16 02:41:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 666 states have (on average 3.355855855855856) internal successors, (2235), 666 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 2235 transitions. [2021-10-16 02:41:52,859 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 2235 transitions. Word has length 32 [2021-10-16 02:41:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:52,860 INFO L470 AbstractCegarLoop]: Abstraction has 667 states and 2235 transitions. [2021-10-16 02:41:52,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:52,860 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 2235 transitions. [2021-10-16 02:41:52,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:41:52,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:52,864 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:52,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:53,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:53,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:53,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:53,080 INFO L82 PathProgramCache]: Analyzing trace with hash -19859968, now seen corresponding path program 5 times [2021-10-16 02:41:53,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:53,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133936846] [2021-10-16 02:41:53,081 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-16 02:41:53,081 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:53,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:53,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:53,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:41:53,392 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:41:53,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:41:53,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:41:53,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:53,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:54,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:54,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133936846] [2021-10-16 02:41:54,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133936846] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:54,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:54,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-16 02:41:54,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170910896] [2021-10-16 02:41:54,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 02:41:54,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 02:41:54,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:41:54,024 INFO L87 Difference]: Start difference. First operand 667 states and 2235 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:54,553 INFO L93 Difference]: Finished difference Result 1147 states and 3783 transitions. [2021-10-16 02:41:54,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:41:54,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-16 02:41:54,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:54,568 INFO L225 Difference]: With dead ends: 1147 [2021-10-16 02:41:54,568 INFO L226 Difference]: Without dead ends: 1147 [2021-10-16 02:41:54,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 222.3ms TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:41:54,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-10-16 02:41:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 703. [2021-10-16 02:41:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 702 states have (on average 3.425925925925926) internal successors, (2405), 702 states have internal predecessors, (2405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 2405 transitions. [2021-10-16 02:41:54,623 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 2405 transitions. Word has length 32 [2021-10-16 02:41:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:54,625 INFO L470 AbstractCegarLoop]: Abstraction has 703 states and 2405 transitions. [2021-10-16 02:41:54,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:54,625 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 2405 transitions. [2021-10-16 02:41:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:41:54,629 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:54,629 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:54,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:54,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:54,845 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:54,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1388439340, now seen corresponding path program 6 times [2021-10-16 02:41:54,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:54,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957747523] [2021-10-16 02:41:54,847 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-16 02:41:54,847 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:54,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:54,848 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:54,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:41:55,252 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-10-16 02:41:55,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:41:55,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-16 02:41:55,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:55,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:55,891 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:55,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957747523] [2021-10-16 02:41:55,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957747523] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:41:55,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:41:55,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-10-16 02:41:55,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249048237] [2021-10-16 02:41:55,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:41:55,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:55,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:41:55,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:41:55,893 INFO L87 Difference]: Start difference. First operand 703 states and 2405 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:56,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:56,180 INFO L93 Difference]: Finished difference Result 1127 states and 3927 transitions. [2021-10-16 02:41:56,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:41:56,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-16 02:41:56,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:56,195 INFO L225 Difference]: With dead ends: 1127 [2021-10-16 02:41:56,195 INFO L226 Difference]: Without dead ends: 1127 [2021-10-16 02:41:56,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 159.5ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:41:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2021-10-16 02:41:56,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 707. [2021-10-16 02:41:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 3.4206798866855523) internal successors, (2415), 706 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2415 transitions. [2021-10-16 02:41:56,239 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2415 transitions. Word has length 32 [2021-10-16 02:41:56,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:56,240 INFO L470 AbstractCegarLoop]: Abstraction has 707 states and 2415 transitions. [2021-10-16 02:41:56,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:56,240 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2415 transitions. [2021-10-16 02:41:56,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 02:41:56,244 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:56,244 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:56,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:56,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:56,461 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:56,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:56,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1574014513, now seen corresponding path program 1 times [2021-10-16 02:41:56,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:56,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210691268] [2021-10-16 02:41:56,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:56,463 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:56,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:56,464 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:56,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 02:41:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:41:56,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-16 02:41:56,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:57,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:57,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:57,666 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:57,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210691268] [2021-10-16 02:41:57,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210691268] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:41:57,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:41:57,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2021-10-16 02:41:57,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024904242] [2021-10-16 02:41:57,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:41:57,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:57,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:41:57,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-10-16 02:41:57,669 INFO L87 Difference]: Start difference. First operand 707 states and 2415 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:58,097 INFO L93 Difference]: Finished difference Result 1449 states and 5037 transitions. [2021-10-16 02:41:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:41:58,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-16 02:41:58,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:58,116 INFO L225 Difference]: With dead ends: 1449 [2021-10-16 02:41:58,116 INFO L226 Difference]: Without dead ends: 1449 [2021-10-16 02:41:58,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-16 02:41:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2021-10-16 02:41:58,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1171. [2021-10-16 02:41:58,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 3.417948717948718) internal successors, (3999), 1170 states have internal predecessors, (3999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 3999 transitions. [2021-10-16 02:41:58,185 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 3999 transitions. Word has length 33 [2021-10-16 02:41:58,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:58,186 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 3999 transitions. [2021-10-16 02:41:58,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:58,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 3999 transitions. [2021-10-16 02:41:58,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 02:41:58,192 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:58,192 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:41:58,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:58,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:58,408 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:41:58,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:58,409 INFO L82 PathProgramCache]: Analyzing trace with hash 89381381, now seen corresponding path program 2 times [2021-10-16 02:41:58,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:58,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128282977] [2021-10-16 02:41:58,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:41:58,409 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:58,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:58,411 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:58,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 02:41:58,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:41:58,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:41:58,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 02:41:58,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:59,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:59,729 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:59,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128282977] [2021-10-16 02:41:59,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128282977] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:41:59,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:41:59,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2021-10-16 02:41:59,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963747531] [2021-10-16 02:41:59,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:41:59,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:59,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:41:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:41:59,730 INFO L87 Difference]: Start difference. First operand 1171 states and 3999 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:59,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:59,997 INFO L93 Difference]: Finished difference Result 1469 states and 4767 transitions. [2021-10-16 02:41:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:41:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-16 02:41:59,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:00,010 INFO L225 Difference]: With dead ends: 1469 [2021-10-16 02:42:00,010 INFO L226 Difference]: Without dead ends: 1413 [2021-10-16 02:42:00,010 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 289.0ms TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-16 02:42:00,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2021-10-16 02:42:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1331. [2021-10-16 02:42:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1330 states have (on average 3.31203007518797) internal successors, (4405), 1330 states have internal predecessors, (4405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:00,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 4405 transitions. [2021-10-16 02:42:00,089 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 4405 transitions. Word has length 33 [2021-10-16 02:42:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:00,089 INFO L470 AbstractCegarLoop]: Abstraction has 1331 states and 4405 transitions. [2021-10-16 02:42:00,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 4405 transitions. [2021-10-16 02:42:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 02:42:00,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:00,096 INFO L512 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] [2021-10-16 02:42:00,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:00,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:00,317 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:42:00,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:00,318 INFO L82 PathProgramCache]: Analyzing trace with hash -254002787, now seen corresponding path program 7 times [2021-10-16 02:42:00,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:00,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277430841] [2021-10-16 02:42:00,318 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-16 02:42:00,319 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:00,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:00,320 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:00,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:42:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:00,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 02:42:00,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:01,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:01,607 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:01,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277430841] [2021-10-16 02:42:01,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277430841] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:42:01,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:42:01,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2021-10-16 02:42:01,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401818618] [2021-10-16 02:42:01,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:42:01,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:01,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:42:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-16 02:42:01,609 INFO L87 Difference]: Start difference. First operand 1331 states and 4405 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:02,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:02,208 INFO L93 Difference]: Finished difference Result 1571 states and 4917 transitions. [2021-10-16 02:42:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:42:02,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-16 02:42:02,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:02,223 INFO L225 Difference]: With dead ends: 1571 [2021-10-16 02:42:02,223 INFO L226 Difference]: Without dead ends: 1445 [2021-10-16 02:42:02,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 281.3ms TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:42:02,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-10-16 02:42:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1169. [2021-10-16 02:42:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1168 states have (on average 3.335616438356164) internal successors, (3896), 1168 states have internal predecessors, (3896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 3896 transitions. [2021-10-16 02:42:02,283 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 3896 transitions. Word has length 33 [2021-10-16 02:42:02,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:02,283 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 3896 transitions. [2021-10-16 02:42:02,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:02,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 3896 transitions. [2021-10-16 02:42:02,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 02:42:02,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:02,290 INFO L512 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] [2021-10-16 02:42:02,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:02,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:02,521 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:42:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:02,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1086307047, now seen corresponding path program 8 times [2021-10-16 02:42:02,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:02,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989722315] [2021-10-16 02:42:02,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:42:02,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:02,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:02,524 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:02,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:42:03,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:42:03,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:42:03,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 02:42:03,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:03,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:03,831 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:03,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989722315] [2021-10-16 02:42:03,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989722315] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:42:03,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:42:03,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2021-10-16 02:42:03,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590262721] [2021-10-16 02:42:03,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:42:03,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:42:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:42:03,833 INFO L87 Difference]: Start difference. First operand 1169 states and 3896 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:04,028 INFO L93 Difference]: Finished difference Result 1127 states and 3781 transitions. [2021-10-16 02:42:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:42:04,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-16 02:42:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:04,039 INFO L225 Difference]: With dead ends: 1127 [2021-10-16 02:42:04,039 INFO L226 Difference]: Without dead ends: 1118 [2021-10-16 02:42:04,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 344.1ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-16 02:42:04,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2021-10-16 02:42:04,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1118. [2021-10-16 02:42:04,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 3.376007162041182) internal successors, (3771), 1117 states have internal predecessors, (3771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 3771 transitions. [2021-10-16 02:42:04,086 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 3771 transitions. Word has length 33 [2021-10-16 02:42:04,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:04,086 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 3771 transitions. [2021-10-16 02:42:04,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 3771 transitions. [2021-10-16 02:42:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-16 02:42:04,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:04,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:42:04,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:04,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:04,308 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:42:04,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:04,308 INFO L82 PathProgramCache]: Analyzing trace with hash -143995291, now seen corresponding path program 1 times [2021-10-16 02:42:04,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:04,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299547151] [2021-10-16 02:42:04,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:04,309 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:04,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:04,310 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:04,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 02:42:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:04,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 02:42:04,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:05,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:05,517 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:05,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299547151] [2021-10-16 02:42:05,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299547151] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:05,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2074896457] [2021-10-16 02:42:05,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:05,518 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:42:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:42:05,520 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:42:05,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-16 02:42:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:06,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:42:06,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:06,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:06,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:06,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2074896457] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:06,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15095991] [2021-10-16 02:42:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:06,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:42:06,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:42:06,738 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:42:06,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-16 02:42:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:07,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:42:07,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:07,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:07,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15095991] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:07,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:42:07,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 20 [2021-10-16 02:42:07,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946753993] [2021-10-16 02:42:07,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 02:42:07,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:07,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 02:42:07,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-10-16 02:42:07,928 INFO L87 Difference]: Start difference. First operand 1118 states and 3771 transitions. Second operand has 20 states, 20 states have (on average 4.9) internal successors, (98), 20 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:09,880 INFO L93 Difference]: Finished difference Result 1548 states and 4840 transitions. [2021-10-16 02:42:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-16 02:42:09,882 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.9) internal successors, (98), 20 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-16 02:42:09,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:09,898 INFO L225 Difference]: With dead ends: 1548 [2021-10-16 02:42:09,899 INFO L226 Difference]: Without dead ends: 1438 [2021-10-16 02:42:09,900 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1582.2ms TimeCoverageRelationStatistics Valid=207, Invalid=915, Unknown=0, NotChecked=0, Total=1122 [2021-10-16 02:42:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2021-10-16 02:42:09,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 758. [2021-10-16 02:42:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 757 states have (on average 3.2417437252311756) internal successors, (2454), 757 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:09,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 2454 transitions. [2021-10-16 02:42:09,942 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 2454 transitions. Word has length 34 [2021-10-16 02:42:09,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:09,943 INFO L470 AbstractCegarLoop]: Abstraction has 758 states and 2454 transitions. [2021-10-16 02:42:09,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.9) internal successors, (98), 20 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:09,943 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 2454 transitions. [2021-10-16 02:42:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-16 02:42:09,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:09,947 INFO L512 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] [2021-10-16 02:42:09,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-10-16 02:42:10,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:10,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-16 02:42:10,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:10,573 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:42:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:10,573 INFO L82 PathProgramCache]: Analyzing trace with hash 852930375, now seen corresponding path program 1 times [2021-10-16 02:42:10,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:10,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410840265] [2021-10-16 02:42:10,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:10,574 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:10,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:10,575 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:10,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-16 02:42:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:11,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:42:11,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:11,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:11,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:11,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:11,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410840265] [2021-10-16 02:42:11,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410840265] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:11,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [25890855] [2021-10-16 02:42:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:11,676 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:42:11,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:42:11,677 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:42:11,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-10-16 02:42:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:12,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:42:12,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:12,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:12,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:12,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [25890855] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:12,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044790442] [2021-10-16 02:42:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:12,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:42:12,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:42:12,815 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:42:12,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-16 02:42:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:13,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:42:13,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:13,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:13,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:13,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044790442] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:13,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:42:13,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 20 [2021-10-16 02:42:13,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078567206] [2021-10-16 02:42:13,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 02:42:13,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 02:42:13,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-10-16 02:42:13,942 INFO L87 Difference]: Start difference. First operand 758 states and 2454 transitions. Second operand has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:17,356 INFO L93 Difference]: Finished difference Result 1382 states and 4664 transitions. [2021-10-16 02:42:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-16 02:42:17,357 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-16 02:42:17,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:17,365 INFO L225 Difference]: With dead ends: 1382 [2021-10-16 02:42:17,366 INFO L226 Difference]: Without dead ends: 1373 [2021-10-16 02:42:17,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 2424.9ms TimeCoverageRelationStatistics Valid=317, Invalid=1405, Unknown=0, NotChecked=0, Total=1722 [2021-10-16 02:42:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2021-10-16 02:42:17,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 711. [2021-10-16 02:42:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 710 states have (on average 3.312676056338028) internal successors, (2352), 710 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 2352 transitions. [2021-10-16 02:42:17,415 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 2352 transitions. Word has length 34 [2021-10-16 02:42:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:17,415 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 2352 transitions. [2021-10-16 02:42:17,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 2352 transitions. [2021-10-16 02:42:17,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-16 02:42:17,418 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:17,419 INFO L512 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] [2021-10-16 02:42:17,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:17,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-10-16 02:42:17,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-10-16 02:42:18,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:42:18,033 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:42:18,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:18,034 INFO L82 PathProgramCache]: Analyzing trace with hash -2118718008, now seen corresponding path program 1 times [2021-10-16 02:42:18,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:18,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281659051] [2021-10-16 02:42:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:18,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:18,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:18,036 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:18,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-16 02:42:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:18,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-16 02:42:18,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:19,203 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-10-16 02:42:19,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 19 [2021-10-16 02:42:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:42:19,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:21,311 INFO L354 Elim1Store]: treesize reduction 380, result has 9.7 percent of original size [2021-10-16 02:42:21,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 77 treesize of output 58 [2021-10-16 02:42:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:42:27,515 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:27,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281659051] [2021-10-16 02:42:27,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281659051] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:27,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1117830770] [2021-10-16 02:42:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:27,516 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:42:27,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:42:27,523 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:42:27,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-10-16 02:42:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:28,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-16 02:42:28,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:29,262 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:42:29,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 19 [2021-10-16 02:42:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:42:29,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:29,710 INFO L354 Elim1Store]: treesize reduction 380, result has 9.7 percent of original size [2021-10-16 02:42:29,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 77 treesize of output 58 [2021-10-16 02:42:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:42:35,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1117830770] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:35,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154432090] [2021-10-16 02:42:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:35,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:42:35,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:42:35,116 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:42:35,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-16 02:42:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:36,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-16 02:42:36,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:36,337 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:42:36,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 19 [2021-10-16 02:42:36,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:42:36,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:36,805 INFO L354 Elim1Store]: treesize reduction 380, result has 9.7 percent of original size [2021-10-16 02:42:36,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 77 treesize of output 58 [2021-10-16 02:42:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:42:41,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154432090] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:41,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:42:41,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7, 6, 7, 6] total 17 [2021-10-16 02:42:41,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963138320] [2021-10-16 02:42:41,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-16 02:42:41,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:41,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-16 02:42:41,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=254, Unknown=1, NotChecked=0, Total=306 [2021-10-16 02:42:41,747 INFO L87 Difference]: Start difference. First operand 711 states and 2352 transitions. Second operand has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:44,195 INFO L93 Difference]: Finished difference Result 1464 states and 5001 transitions. [2021-10-16 02:42:44,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 02:42:44,197 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 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 36 [2021-10-16 02:42:44,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:44,205 INFO L225 Difference]: With dead ends: 1464 [2021-10-16 02:42:44,205 INFO L226 Difference]: Without dead ends: 1431 [2021-10-16 02:42:44,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 194 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2594.8ms TimeCoverageRelationStatistics Valid=137, Invalid=618, Unknown=1, NotChecked=0, Total=756 [2021-10-16 02:42:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2021-10-16 02:42:44,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 825. [2021-10-16 02:42:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 3.3264563106796117) internal successors, (2741), 824 states have internal predecessors, (2741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 2741 transitions. [2021-10-16 02:42:44,249 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 2741 transitions. Word has length 36 [2021-10-16 02:42:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:44,249 INFO L470 AbstractCegarLoop]: Abstraction has 825 states and 2741 transitions. [2021-10-16 02:42:44,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 2741 transitions. [2021-10-16 02:42:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-16 02:42:44,253 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:44,253 INFO L512 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] [2021-10-16 02:42:44,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:44,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:44,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-10-16 02:42:44,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:44,860 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 02:42:44,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:44,860 INFO L82 PathProgramCache]: Analyzing trace with hash -930528212, now seen corresponding path program 2 times [2021-10-16 02:42:44,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:44,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258836790] [2021-10-16 02:42:44,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:42:44,861 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:44,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:44,862 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:44,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-16 02:42:45,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:42:45,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:42:46,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-16 02:42:46,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:46,404 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-10-16 02:42:46,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 19 [2021-10-16 02:42:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:42:46,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:48,577 INFO L354 Elim1Store]: treesize reduction 380, result has 9.7 percent of original size [2021-10-16 02:42:48,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 77 treesize of output 58 [2021-10-16 02:42:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:42:53,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:53,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258836790] [2021-10-16 02:42:53,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258836790] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:42:53,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [649944268] [2021-10-16 02:42:53,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:42:53,383 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:42:53,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:42:53,384 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:42:53,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-10-16 02:42:54,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:42:54,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:42:54,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-16 02:42:54,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:55,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:42:55,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:42:55,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:42:55,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:42:55,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:42:55,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:42:55,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-10-16 02:43:01,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:01,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 88 [2021-10-16 02:43:08,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:43:09,883 INFO L354 Elim1Store]: treesize reduction 1483, result has 13.0 percent of original size [2021-10-16 02:43:09,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 118 treesize of output 278 [2021-10-16 02:46:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:11,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:48:27,140 WARN L207 SmtUtils]: Spent 2.26 m on a formula simplification. DAG size of input: 519 DAG size of output: 240 [2021-10-16 02:48:27,143 INFO L354 Elim1Store]: treesize reduction 2282, result has 24.6 percent of original size [2021-10-16 02:48:27,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 81 case distinctions, treesize of input 284 treesize of output 947 [2021-10-16 02:53:49,704 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-16 02:53:49,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-16 02:53:49,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692285419] [2021-10-16 02:53:49,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:53:49,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:53:49,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:53:49,711 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:53:49,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-16 02:53:49,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-16 02:53:51,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:53:51,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:53:51,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-16 02:53:51,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:53:51,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:53:51,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:53:51,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-16 02:53:51,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217040519] [2021-10-16 02:53:51,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-16 02:53:51,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:53:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-16 02:53:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=256, Unknown=4, NotChecked=0, Total=306 [2021-10-16 02:53:51,418 INFO L87 Difference]: Start difference. First operand 825 states and 2741 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:53:51,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-16 02:53:51,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-16 02:53:51,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-10-16 02:53:52,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:53:52,026 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:432) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:881) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:778) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 35 more [2021-10-16 02:53:52,031 INFO L168 Benchmark]: Toolchain (without parser) took 750271.27 ms. Allocated memory was 54.5 MB in the beginning and 161.5 MB in the end (delta: 107.0 MB). Free memory was 31.6 MB in the beginning and 74.1 MB in the end (delta: -42.5 MB). Peak memory consumption was 64.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:53:52,031 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 54.5 MB. Free memory is still 34.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:53:52,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.36 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.5 MB in the beginning and 49.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:53:52,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.67 ms. Allocated memory is still 71.3 MB. Free memory was 49.8 MB in the beginning and 47.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:53:52,033 INFO L168 Benchmark]: Boogie Preprocessor took 106.69 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 45.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:53:52,033 INFO L168 Benchmark]: RCFGBuilder took 1641.32 ms. Allocated memory is still 71.3 MB. Free memory was 45.2 MB in the beginning and 45.9 MB in the end (delta: -637.4 kB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:53:52,034 INFO L168 Benchmark]: TraceAbstraction took 747744.25 ms. Allocated memory was 71.3 MB in the beginning and 161.5 MB in the end (delta: 90.2 MB). Free memory was 45.5 MB in the beginning and 74.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 61.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:53:52,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 54.5 MB. Free memory is still 34.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 672.36 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.5 MB in the beginning and 49.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.67 ms. Allocated memory is still 71.3 MB. Free memory was 49.8 MB in the beginning and 47.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.69 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 45.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1641.32 ms. Allocated memory is still 71.3 MB. Free memory was 45.2 MB in the beginning and 45.9 MB in the end (delta: -637.4 kB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 747744.25 ms. Allocated memory was 71.3 MB in the beginning and 161.5 MB in the end (delta: 90.2 MB). Free memory was 45.5 MB in the beginning and 74.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 61.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18642.5ms, 193 PlacesBefore, 56 PlacesAfterwards, 197 TransitionsBefore, 49 TransitionsAfterwards, 4072 CoEnabledTransitionPairs, 8 FixpointIterations, 96 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 18 ConcurrentYvCompositions, 11 ChoiceCompositions, 185 TotalNumberOfCompositions, 10105 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7265, positive: 7034, positive conditional: 0, positive unconditional: 7034, negative: 231, negative conditional: 0, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3183, positive: 3138, positive conditional: 0, positive unconditional: 3138, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3183, positive: 3132, positive conditional: 0, positive unconditional: 3132, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 706, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 658, negative conditional: 0, negative unconditional: 658, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7265, positive: 3896, positive conditional: 0, positive unconditional: 3896, negative: 186, negative conditional: 0, negative unconditional: 186, unknown: 3183, unknown conditional: 0, unknown unconditional: 3183] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 276, Positive conditional cache size: 0, Positive unconditional cache size: 276, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be3cd443-f79d-4ea7-a6c3-d0007430eb54/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...