./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs --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 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:19:16,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:19:16,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:19:16,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:19:16,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:19:16,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:19:16,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:19:16,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:19:16,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:19:16,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:19:16,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:19:16,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:19:16,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:19:16,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:19:16,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:19:16,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:19:16,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:19:16,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:19:16,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:19:16,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:19:16,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:19:16,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:19:16,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:19:16,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:19:16,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:19:16,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:19:16,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:19:16,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:19:16,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:19:16,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:19:16,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:19:16,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:19:16,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:19:16,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:19:16,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:19:16,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:19:16,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:19:16,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:19:16,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:19:16,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:19:16,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:19:16,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:19:16,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:19:16,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:19:16,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:19:16,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:19:16,793 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:19:16,794 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:19:16,794 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:19:16,794 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:19:16,795 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:19:16,795 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:19:16,800 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:19:16,801 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:19:16,801 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:19:16,802 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:19:16,802 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:19:16,802 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:19:16,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:19:16,804 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:19:16,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:19:16,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:19:16,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:19:16,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:19:16,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:19:16,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:19:16,806 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:19:16,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:19:16,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:19:16,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:19:16,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:19:16,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:19:16,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:19:16,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:19:16,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:19:16,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:19:16,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:19:16,811 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:19:16,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:19:16,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:19:16,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:19:16,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:19:16,813 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_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c [2021-11-19 14:19:17,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:19:17,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:19:17,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:19:17,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:19:17,227 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:19:17,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-19 14:19:17,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/8f5ac3c77/4b68a12669414746b166b4b288032f26/FLAG612ad2025 [2021-11-19 14:19:17,955 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:19:17,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-19 14:19:17,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/8f5ac3c77/4b68a12669414746b166b4b288032f26/FLAG612ad2025 [2021-11-19 14:19:18,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/8f5ac3c77/4b68a12669414746b166b4b288032f26 [2021-11-19 14:19:18,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:19:18,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:19:18,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:19:18,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:19:18,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:19:18,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:19:18" (1/1) ... [2021-11-19 14:19:18,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b757d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:18, skipping insertion in model container [2021-11-19 14:19:18,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:19:18" (1/1) ... [2021-11-19 14:19:18,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:19:18,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:19:18,601 WARN L230 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_405b13b0-ff4e-4fb3-8388-d836fa077954/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-19 14:19:18,612 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:19:18,623 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:19:18,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ec7032f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:18, skipping insertion in model container [2021-11-19 14:19:18,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:19:18,625 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:19:18,628 INFO L158 Benchmark]: Toolchain (without parser) took 320.66ms. Allocated memory is still 113.2MB. Free memory was 82.2MB in the beginning and 88.3MB in the end (delta: -6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:19:18,629 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:19:18,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.99ms. Allocated memory is still 113.2MB. Free memory was 81.9MB in the beginning and 88.3MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:19:18,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.99ms. Allocated memory is still 113.2MB. Free memory was 81.9MB in the beginning and 88.3MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 109]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs --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 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:19:21,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:19:21,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:19:21,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:19:21,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:19:21,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:19:21,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:19:21,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:19:21,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:19:21,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:19:21,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:19:21,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:19:21,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:19:21,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:19:21,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:19:21,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:19:21,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:19:21,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:19:21,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:19:21,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:19:21,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:19:21,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:19:21,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:19:21,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:19:21,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:19:21,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:19:21,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:19:21,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:19:21,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:19:21,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:19:21,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:19:21,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:19:21,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:19:21,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:19:21,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:19:21,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:19:21,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:19:21,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:19:21,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:19:21,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:19:21,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:19:21,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:19:21,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:19:21,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:19:21,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:19:21,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:19:21,662 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:19:21,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:19:21,662 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:19:21,663 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:19:21,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:19:21,663 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:19:21,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:19:21,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:19:21,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:19:21,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:19:21,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:19:21,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:19:21,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:19:21,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:19:21,669 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:19:21,669 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:19:21,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:19:21,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:19:21,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:19:21,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:19:21,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:19:21,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:19:21,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:19:21,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:19:21,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:19:21,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:19:21,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:19:21,673 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:19:21,673 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:19:21,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:19:21,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:19:21,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:19:21,674 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_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c [2021-11-19 14:19:22,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:19:22,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:19:22,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:19:22,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:19:22,161 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:19:22,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-19 14:19:22,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/e1ecad5d7/c40ca4a692aa4a8f916200ef06a03c95/FLAG7e1026833 [2021-11-19 14:19:22,991 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:19:22,992 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-19 14:19:23,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/e1ecad5d7/c40ca4a692aa4a8f916200ef06a03c95/FLAG7e1026833 [2021-11-19 14:19:23,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/data/e1ecad5d7/c40ca4a692aa4a8f916200ef06a03c95 [2021-11-19 14:19:23,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:19:23,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:19:23,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:19:23,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:19:23,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:19:23,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204a791a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23, skipping insertion in model container [2021-11-19 14:19:23,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:19:23,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:19:23,530 WARN L230 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_405b13b0-ff4e-4fb3-8388-d836fa077954/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-19 14:19:23,541 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:19:23,555 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:19:23,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:19:23,580 WARN L230 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_405b13b0-ff4e-4fb3-8388-d836fa077954/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-19 14:19:23,585 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:19:23,598 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:19:23,637 WARN L230 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_405b13b0-ff4e-4fb3-8388-d836fa077954/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-19 14:19:23,653 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:19:23,671 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:19:23,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23 WrapperNode [2021-11-19 14:19:23,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:19:23,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:19:23,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:19:23,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:19:23,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,751 INFO L137 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 103 [2021-11-19 14:19:23,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:19:23,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:19:23,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:19:23,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:19:23,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:19:23,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:19:23,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:19:23,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:19:23,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (1/1) ... [2021-11-19 14:19:23,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:19:23,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:19:23,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:19:23,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:19:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:19:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:19:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:19:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:19:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-19 14:19:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-19 14:19:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-19 14:19:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-19 14:19:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-19 14:19:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-19 14:19:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 14:19:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 14:19:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:19:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:19:23,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:19:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:19:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:19:23,977 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 14:19:24,086 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:19:24,089 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:19:24,529 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:19:24,677 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:19:24,677 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 14:19:24,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:19:24 BoogieIcfgContainer [2021-11-19 14:19:24,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:19:24,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:19:24,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:19:24,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:19:24,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:19:23" (1/3) ... [2021-11-19 14:19:24,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8310cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:19:24, skipping insertion in model container [2021-11-19 14:19:24,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:19:23" (2/3) ... [2021-11-19 14:19:24,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8310cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:19:24, skipping insertion in model container [2021-11-19 14:19:24,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:19:24" (3/3) ... [2021-11-19 14:19:24,713 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2021-11-19 14:19:24,719 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 14:19:24,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:19:24,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:19:24,720 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 14:19:24,816 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,826 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,826 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,827 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,827 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,827 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,829 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,830 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,831 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,832 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,833 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,833 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,834 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,835 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,835 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,835 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,836 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,836 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,836 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,853 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,855 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,856 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,856 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,857 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,857 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,858 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,859 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,859 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,859 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,859 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,860 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,861 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,861 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,861 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,861 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,861 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,862 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,863 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,863 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,863 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,864 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,864 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,865 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,865 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,865 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,866 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,869 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,870 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,872 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,873 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,874 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,876 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 14:19:24,879 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-19 14:19:24,937 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:19:24,946 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:19:24,946 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-19 14:19:24,965 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 14:19:24,982 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 156 transitions, 336 flow [2021-11-19 14:19:24,986 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 156 transitions, 336 flow [2021-11-19 14:19:24,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 153 places, 156 transitions, 336 flow [2021-11-19 14:19:25,107 INFO L129 PetriNetUnfolder]: 13/153 cut-off events. [2021-11-19 14:19:25,107 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-19 14:19:25,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 13/153 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2021-11-19 14:19:25,132 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2021-11-19 14:19:47,762 INFO L131 LiptonReduction]: Checked pairs total: 1543 [2021-11-19 14:19:47,763 INFO L133 LiptonReduction]: Total number of compositions: 157 [2021-11-19 14:19:47,773 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 80 flow [2021-11-19 14:19:47,801 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 14:19:47,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:47,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:47,818 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-19 14:19:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1057606279, now seen corresponding path program 1 times [2021-11-19 14:19:47,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:47,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303319982] [2021-11-19 14:19:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:47,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:47,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:47,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:47,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:19:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:48,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:19:48,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:19:48,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:19:49,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:49,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303319982] [2021-11-19 14:19:49,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303319982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:19:49,269 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:19:49,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-19 14:19:49,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491066767] [2021-11-19 14:19:49,272 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:49,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:19:49,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:49,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:19:49,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:19:49,319 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:49,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:49,506 INFO L93 Difference]: Finished difference Result 204 states and 632 transitions. [2021-11-19 14:19:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:19:49,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 20 [2021-11-19 14:19:49,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:49,526 INFO L225 Difference]: With dead ends: 204 [2021-11-19 14:19:49,527 INFO L226 Difference]: Without dead ends: 197 [2021-11-19 14:19:49,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:19:49,532 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:49,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:19:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-19 14:19:49,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-19 14:19:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 3.13265306122449) internal successors, (614), 196 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:49,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 614 transitions. [2021-11-19 14:19:49,629 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 614 transitions. Word has length 20 [2021-11-19 14:19:49,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:49,630 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 614 transitions. [2021-11-19 14:19:49,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:49,631 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 614 transitions. [2021-11-19 14:19:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 14:19:49,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:49,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:49,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:49,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:49,850 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-19 14:19:49,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:49,851 INFO L85 PathProgramCache]: Analyzing trace with hash -2131303237, now seen corresponding path program 1 times [2021-11-19 14:19:49,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:49,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898516618] [2021-11-19 14:19:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:49,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:49,856 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:49,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:19:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:50,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:19:50,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:19:50,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:19:50,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:50,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898516618] [2021-11-19 14:19:50,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898516618] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:19:50,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:19:50,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2021-11-19 14:19:50,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153929729] [2021-11-19 14:19:50,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:50,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:19:50,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:50,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:19:50,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:19:50,575 INFO L87 Difference]: Start difference. First operand 197 states and 614 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:51,224 INFO L93 Difference]: Finished difference Result 271 states and 850 transitions. [2021-11-19 14:19:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:19:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2021-11-19 14:19:51,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:51,231 INFO L225 Difference]: With dead ends: 271 [2021-11-19 14:19:51,231 INFO L226 Difference]: Without dead ends: 271 [2021-11-19 14:19:51,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:19:51,234 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 91 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:51,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 13 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:19:51,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-19 14:19:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 189. [2021-11-19 14:19:51,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 3.106382978723404) internal successors, (584), 188 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:51,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 584 transitions. [2021-11-19 14:19:51,305 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 584 transitions. Word has length 21 [2021-11-19 14:19:51,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:51,306 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 584 transitions. [2021-11-19 14:19:51,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:51,306 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 584 transitions. [2021-11-19 14:19:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 14:19:51,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:51,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:51,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:51,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:51,515 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-19 14:19:51,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1735959559, now seen corresponding path program 2 times [2021-11-19 14:19:51,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:51,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700747012] [2021-11-19 14:19:51,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:19:51,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:51,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:51,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:51,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:19:51,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 14:19:51,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:19:51,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 14:19:51,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:51,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:51,936 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:51,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700747012] [2021-11-19 14:19:51,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700747012] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:19:51,937 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:19:51,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 6] imperfect sequences [] total 7 [2021-11-19 14:19:51,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281726084] [2021-11-19 14:19:51,938 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:51,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:19:51,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:51,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:19:51,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:19:51,941 INFO L87 Difference]: Start difference. First operand 189 states and 584 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:52,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:52,495 INFO L93 Difference]: Finished difference Result 266 states and 823 transitions. [2021-11-19 14:19:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:19:52,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 21 [2021-11-19 14:19:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:52,503 INFO L225 Difference]: With dead ends: 266 [2021-11-19 14:19:52,503 INFO L226 Difference]: Without dead ends: 266 [2021-11-19 14:19:52,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:19:52,505 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 50 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:52,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 21 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:19:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-19 14:19:52,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 220. [2021-11-19 14:19:52,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 3.0913242009132422) internal successors, (677), 219 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 677 transitions. [2021-11-19 14:19:52,531 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 677 transitions. Word has length 21 [2021-11-19 14:19:52,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:52,532 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 677 transitions. [2021-11-19 14:19:52,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 677 transitions. [2021-11-19 14:19:52,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-19 14:19:52,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:52,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:52,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 14:19:52,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:52,749 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-19 14:19:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1954968319, now seen corresponding path program 1 times [2021-11-19 14:19:52,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:52,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553161616] [2021-11-19 14:19:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:52,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:52,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:52,753 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:52,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:19:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:52,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:19:52,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:53,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:53,506 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:53,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553161616] [2021-11-19 14:19:53,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553161616] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:19:53,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1434422867] [2021-11-19 14:19:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:53,508 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:19:53,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:19:53,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:19:53,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-19 14:19:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:53,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:19:53,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:54,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:54,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1434422867] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:19:54,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862017103] [2021-11-19 14:19:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:54,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:19:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:19:54,514 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:19:54,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 14:19:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:54,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:19:54,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:55,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:19:55,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862017103] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:19:55,585 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:19:55,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 8, 8] total 32 [2021-11-19 14:19:55,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099569209] [2021-11-19 14:19:55,586 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:19:55,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-19 14:19:55,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:55,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-19 14:19:55,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:19:55,589 INFO L87 Difference]: Start difference. First operand 220 states and 677 transitions. Second operand has 32 states, 32 states have (on average 2.53125) internal successors, (81), 32 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:59,735 INFO L93 Difference]: Finished difference Result 894 states and 2664 transitions. [2021-11-19 14:19:59,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-19 14:19:59,736 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.53125) internal successors, (81), 32 states have internal predecessors, (81), 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 22 [2021-11-19 14:19:59,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:59,747 INFO L225 Difference]: With dead ends: 894 [2021-11-19 14:19:59,747 INFO L226 Difference]: Without dead ends: 894 [2021-11-19 14:19:59,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=854, Invalid=2338, Unknown=0, NotChecked=0, Total=3192 [2021-11-19 14:19:59,751 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 599 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:59,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 78 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 14:19:59,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-11-19 14:19:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 290. [2021-11-19 14:19:59,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 3.359861591695502) internal successors, (971), 289 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 971 transitions. [2021-11-19 14:19:59,792 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 971 transitions. Word has length 22 [2021-11-19 14:19:59,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:59,793 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 971 transitions. [2021-11-19 14:19:59,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.53125) internal successors, (81), 32 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:19:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 971 transitions. [2021-11-19 14:19:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 14:19:59,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:59,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:59,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:20:00,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:20:00,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-19 14:20:00,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:20:00,400 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-19 14:20:00,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:20:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash -98057531, now seen corresponding path program 1 times [2021-11-19 14:20:00,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:20:00,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903238522] [2021-11-19 14:20:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:00,402 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:20:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:20:00,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:20:00,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:20:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:00,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:20:00,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:01,558 INFO L354 Elim1Store]: treesize reduction 234, result has 14.9 percent of original size [2021-11-19 14:20:01,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 216 treesize of output 118 [2021-11-19 14:20:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:20:16,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:17,889 INFO L354 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2021-11-19 14:20:17,889 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 393 treesize of output 161 [2021-11-19 14:24:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 14:24:01,779 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:01,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903238522] [2021-11-19 14:24:01,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903238522] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:01,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1796293570] [2021-11-19 14:24:01,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:01,780 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:24:01,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:24:01,788 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:24:01,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_405b13b0-ff4e-4fb3-8388-d836fa077954/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-19 14:24:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:02,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-19 14:24:02,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:02,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:24:02,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:24:02,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:24:02,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:24:02,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:24:02,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:24:02,506 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 30 treesize of output 39 [2021-11-19 14:24:05,265 INFO L354 Elim1Store]: treesize reduction 815, result has 6.5 percent of original size [2021-11-19 14:24:05,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 75 treesize of output 95 [2021-11-19 14:27:08,764 WARN L227 SmtUtils]: Spent 2.98m on a formula simplification. DAG size of input: 344 DAG size of output: 120 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:27:08,766 INFO L354 Elim1Store]: treesize reduction 1534, result has 21.3 percent of original size [2021-11-19 14:27:08,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 113 treesize of output 468