./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:38,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:38,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:38,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:38,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:38,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:38,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:38,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:38,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:38,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:38,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:38,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:38,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:38,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:38,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:38,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:38,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:38,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:38,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:38,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:38,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:38,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:38,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:38,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:38,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:38,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:38,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:38,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:38,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:38,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:38,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:38,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:38,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:38,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:38,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:38,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:38,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:38,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:38,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:38,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:38,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:38,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:42:38,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:38,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:38,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:38,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:38,816 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:38,816 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:38,816 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:38,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:42:38,817 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:38,817 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:38,818 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:42:38,819 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:42:38,819 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:38,819 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:42:38,819 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:42:38,820 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:42:38,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:38,821 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:42:38,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:42:38,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:42:38,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:38,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:42:38,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:38,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:42:38,822 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:38,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:42:38,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:42:38,823 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:38,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:42:38,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:38,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:38,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:38,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:38,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:38,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:42:38,827 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:42:38,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:42:38,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:42:38,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:38,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:38,828 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_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2021-11-13 01:42:39,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:39,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:39,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:39,097 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:39,098 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:39,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-13 01:42:39,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/b00860f10/7cbd6bbb67734bb6b5fbcc556395a3a2/FLAG0a28ea397 [2021-11-13 01:42:39,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:39,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-13 01:42:39,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/b00860f10/7cbd6bbb67734bb6b5fbcc556395a3a2/FLAG0a28ea397 [2021-11-13 01:42:40,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/b00860f10/7cbd6bbb67734bb6b5fbcc556395a3a2 [2021-11-13 01:42:40,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:40,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:40,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:40,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:40,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:40,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:40" (1/1) ... [2021-11-13 01:42:40,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541da2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:40, skipping insertion in model container [2021-11-13 01:42:40,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:40" (1/1) ... [2021-11-13 01:42:40,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:40,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:40,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-13 01:42:40,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:40,313 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) [2021-11-13 01:42:40,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6824bc88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:40, skipping insertion in model container [2021-11-13 01:42:40,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:40,314 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:42:40,316 INFO L158 Benchmark]: Toolchain (without parser) took 293.85ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 82.1MB in the end (delta: -11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:42:40,317 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:40,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.25ms. Allocated memory is still 107.0MB. Free memory was 70.6MB in the beginning and 82.1MB in the end (delta: -11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:42:40,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.25ms. Allocated memory is still 107.0MB. Free memory was 70.6MB in the beginning and 82.1MB in the end (delta: -11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 159]: 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_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:42,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:42,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:42,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:42,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:42,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:42,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:42,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:42,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:42,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:42,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:42,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:42,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:42,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:42,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:42,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:42,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:42,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:42,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:42,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:42,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:42,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:42,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:42,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:42,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:42,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:42,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:42,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:42,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:42,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:42,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:42,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:42,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:42,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:42,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:42,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:42,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:42,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:42,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:42,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:42,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:42,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:42:42,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:42,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:42,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:42,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:42,786 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:42,787 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:42,787 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:42,787 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:42,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:42,788 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:42,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:42,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:42:42,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:42:42,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:42,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:42:42,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:42,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:42:42,793 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:42,793 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:42:42,793 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:42:42,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:42:42,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:42:42,794 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:42,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:42:42,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:42,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:42:42,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:42,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:42,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:42,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:42,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:42:42,797 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:42:42,797 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:42:42,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:42:42,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:42,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:42,799 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_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2021-11-13 01:42:43,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:43,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:43,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:43,217 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:43,218 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:43,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-13 01:42:43,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/732049270/a1f4e869da7e4bbf984e089effa329a3/FLAG168a15973 [2021-11-13 01:42:43,842 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:43,843 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-13 01:42:43,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/732049270/a1f4e869da7e4bbf984e089effa329a3/FLAG168a15973 [2021-11-13 01:42:44,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/data/732049270/a1f4e869da7e4bbf984e089effa329a3 [2021-11-13 01:42:44,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:44,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:44,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:44,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:44,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:44,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5146301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44, skipping insertion in model container [2021-11-13 01:42:44,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:44,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:44,549 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-13 01:42:44,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:44,572 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:42:44,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:44,632 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-13 01:42:44,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:44,659 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:42:44,702 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-13 01:42:44,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:44,742 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:42:44,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44 WrapperNode [2021-11-13 01:42:44,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:44,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:44,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:42:44,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:42:44,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:44,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:42:44,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:42:44,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:42:44,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:42:44,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:42:44,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:42:44,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:42:44,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (1/1) ... [2021-11-13 01:42:44,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:44,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:42:44,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:42:44,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:42:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:42:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:42:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:42:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-13 01:42:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-13 01:42:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-13 01:42:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-13 01:42:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-13 01:42:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-13 01:42:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-13 01:42:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-13 01:42:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 01:42:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 01:42:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:42:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:42:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:42:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:42:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:42:45,008 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 01:42:45,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:42:45,946 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-13 01:42:45,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:45 BoogieIcfgContainer [2021-11-13 01:42:45,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:42:45,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:42:45,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:42:45,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:42:45,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:42:44" (1/3) ... [2021-11-13 01:42:45,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b6c8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:45, skipping insertion in model container [2021-11-13 01:42:45,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44" (2/3) ... [2021-11-13 01:42:45,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b6c8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:45, skipping insertion in model container [2021-11-13 01:42:45,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:45" (3/3) ... [2021-11-13 01:42:45,961 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2021-11-13 01:42:45,966 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 01:42:45,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:42:45,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:42:45,967 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 01:42:46,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,025 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,025 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,025 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,025 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,026 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,026 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,026 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,026 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,027 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,027 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,027 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,028 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,028 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,028 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,028 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,029 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,029 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,036 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,036 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,036 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,037 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,037 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,038 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,038 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,038 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,039 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,039 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,039 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,039 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,042 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,042 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,042 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,042 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,043 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,043 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,043 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,043 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,044 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,044 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,044 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,044 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,045 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,057 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,058 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,059 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,062 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,062 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,062 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,062 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,063 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,063 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,063 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,063 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,069 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,069 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,069 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,070 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,071 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,071 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,074 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,085 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,088 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,088 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,089 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,089 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,089 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,089 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,090 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,090 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,090 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,090 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,091 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,091 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,091 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,094 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,101 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,103 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,104 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:42:46,107 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-13 01:42:46,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:42:46,164 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 [2021-11-13 01:42:46,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-13 01:42:46,182 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-13 01:42:46,195 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 234 transitions, 500 flow [2021-11-13 01:42:46,198 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 234 transitions, 500 flow [2021-11-13 01:42:46,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 234 transitions, 500 flow [2021-11-13 01:42:46,298 INFO L129 PetriNetUnfolder]: 19/230 cut-off events. [2021-11-13 01:42:46,298 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-13 01:42:46,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 230 events. 19/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 108 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2021-11-13 01:42:46,309 INFO L116 LiptonReduction]: Number of co-enabled transitions 1824 [2021-11-13 01:43:11,766 INFO L131 LiptonReduction]: Checked pairs total: 3454 [2021-11-13 01:43:11,766 INFO L133 LiptonReduction]: Total number of compositions: 231 [2021-11-13 01:43:11,774 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 40 transitions, 112 flow [2021-11-13 01:43:11,819 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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) [2021-11-13 01:43:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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) [2021-11-13 01:43:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 01:43:11,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:11,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:11,841 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:43:11,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1702452940, now seen corresponding path program 1 times [2021-11-13 01:43:11,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:11,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519215701] [2021-11-13 01:43:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:11,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:11,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:11,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:11,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:43:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:12,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:43:12,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:12,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:12,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:12,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:12,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519215701] [2021-11-13 01:43:12,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519215701] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:12,318 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:12,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 01:43:12,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201355409] [2021-11-13 01:43:12,320 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:12,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:43:12,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:12,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:43:12,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:43:12,349 INFO L87 Difference]: Start difference. First operand has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:12,832 INFO L93 Difference]: Finished difference Result 654 states and 2704 transitions. [2021-11-13 01:43:12,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:43:12,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-13 01:43:12,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:12,856 INFO L225 Difference]: With dead ends: 654 [2021-11-13 01:43:12,856 INFO L226 Difference]: Without dead ends: 654 [2021-11-13 01:43:12,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:43:12,861 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 82 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 370.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 423.12ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:12,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 15 Invalid, 136 Unknown, 0 Unchecked, 3.09ms Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 423.12ms Time] [2021-11-13 01:43:12,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2021-11-13 01:43:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2021-11-13 01:43:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 4.1408882082695255) internal successors, (2704), 653 states have internal predecessors, (2704), 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) [2021-11-13 01:43:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 2704 transitions. [2021-11-13 01:43:12,957 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 2704 transitions. Word has length 27 [2021-11-13 01:43:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:12,958 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 2704 transitions. [2021-11-13 01:43:12,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 2704 transitions. [2021-11-13 01:43:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 01:43:12,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:12,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:12,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:13,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:13,176 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:43:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash -124627514, now seen corresponding path program 1 times [2021-11-13 01:43:13,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:13,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175875899] [2021-11-13 01:43:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:13,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:13,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:13,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:13,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:43:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:13,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:43:13,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:13,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:13,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:13,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175875899] [2021-11-13 01:43:13,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175875899] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:13,689 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:13,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 01:43:13,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553652917] [2021-11-13 01:43:13,690 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:13,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:43:13,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:13,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:43:13,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:43:13,692 INFO L87 Difference]: Start difference. First operand 654 states and 2704 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-13 01:43:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:14,066 INFO L93 Difference]: Finished difference Result 853 states and 3387 transitions. [2021-11-13 01:43:14,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:14,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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 28 [2021-11-13 01:43:14,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:14,074 INFO L225 Difference]: With dead ends: 853 [2021-11-13 01:43:14,075 INFO L226 Difference]: Without dead ends: 655 [2021-11-13 01:43:14,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:43:14,076 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 290.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 355.64ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:14,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 117 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 355.64ms Time] [2021-11-13 01:43:14,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2021-11-13 01:43:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2021-11-13 01:43:14,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 4.136085626911315) internal successors, (2705), 654 states have internal predecessors, (2705), 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) [2021-11-13 01:43:14,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2705 transitions. [2021-11-13 01:43:14,112 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2705 transitions. Word has length 28 [2021-11-13 01:43:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:14,112 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 2705 transitions. [2021-11-13 01:43:14,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-13 01:43:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2705 transitions. [2021-11-13 01:43:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 01:43:14,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:14,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:14,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:14,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:14,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:43:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2083485159, now seen corresponding path program 1 times [2021-11-13 01:43:14,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:14,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367687596] [2021-11-13 01:43:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:14,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:14,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:14,338 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:14,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:43:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:14,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:43:14,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:15,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 01:43:15,270 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:15,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367687596] [2021-11-13 01:43:15,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367687596] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:43:15,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:43:15,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2021-11-13 01:43:15,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013394345] [2021-11-13 01:43:15,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:15,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:43:15,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:15,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:43:15,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:43:15,274 INFO L87 Difference]: Start difference. First operand 655 states and 2705 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-11-13 01:43:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:16,009 INFO L93 Difference]: Finished difference Result 1033 states and 4259 transitions. [2021-11-13 01:43:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:43:16,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-13 01:43:16,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:16,024 INFO L225 Difference]: With dead ends: 1033 [2021-11-13 01:43:16,024 INFO L226 Difference]: Without dead ends: 1033 [2021-11-13 01:43:16,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:43:16,026 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 70 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 570.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 645.52ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:16,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 29 Invalid, 160 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 645.52ms Time] [2021-11-13 01:43:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-11-13 01:43:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 839. [2021-11-13 01:43:16,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 838 states have (on average 4.144391408114559) internal successors, (3473), 838 states have internal predecessors, (3473), 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) [2021-11-13 01:43:16,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 3473 transitions. [2021-11-13 01:43:16,075 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 3473 transitions. Word has length 29 [2021-11-13 01:43:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:16,076 INFO L470 AbstractCegarLoop]: Abstraction has 839 states and 3473 transitions. [2021-11-13 01:43:16,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-11-13 01:43:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 3473 transitions. [2021-11-13 01:43:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 01:43:16,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:16,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:16,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-13 01:43:16,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:16,293 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:43:16,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash 939940533, now seen corresponding path program 2 times [2021-11-13 01:43:16,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:16,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034096041] [2021-11-13 01:43:16,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:43:16,296 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:16,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:16,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:16,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:43:16,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 01:43:16,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:43:16,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:43:16,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 01:43:16,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 01:43:16,818 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:16,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034096041] [2021-11-13 01:43:16,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034096041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:16,819 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:16,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 01:43:16,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561313074] [2021-11-13 01:43:16,819 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:16,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:43:16,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:16,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:43:16,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:43:16,821 INFO L87 Difference]: Start difference. First operand 839 states and 3473 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:17,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:17,605 INFO L93 Difference]: Finished difference Result 1379 states and 5617 transitions. [2021-11-13 01:43:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:43:17,606 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-13 01:43:17,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:17,622 INFO L225 Difference]: With dead ends: 1379 [2021-11-13 01:43:17,623 INFO L226 Difference]: Without dead ends: 1379 [2021-11-13 01:43:17,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:43:17,624 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 144 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 615.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.87ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 709.23ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:17,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 31 Invalid, 214 Unknown, 0 Unchecked, 2.87ms Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 709.23ms Time] [2021-11-13 01:43:17,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2021-11-13 01:43:17,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 719. [2021-11-13 01:43:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 718 states have (on average 4.018105849582173) internal successors, (2885), 718 states have internal predecessors, (2885), 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) [2021-11-13 01:43:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 2885 transitions. [2021-11-13 01:43:17,670 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 2885 transitions. Word has length 29 [2021-11-13 01:43:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:17,671 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 2885 transitions. [2021-11-13 01:43:17,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:17,671 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 2885 transitions. [2021-11-13 01:43:17,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 01:43:17,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:17,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:17,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:17,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:17,888 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:43:17,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:17,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1469718632, now seen corresponding path program 1 times [2021-11-13 01:43:17,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:17,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917394571] [2021-11-13 01:43:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:17,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:17,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:17,890 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:17,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:43:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:18,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 01:43:18,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:19,666 INFO L354 Elim1Store]: treesize reduction 1262, result has 5.7 percent of original size [2021-11-13 01:43:19,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 84 treesize of output 104 [2021-11-13 01:46:14,310 WARN L227 SmtUtils]: Spent 2.86m on a formula simplification. DAG size of input: 375 DAG size of output: 127 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 01:46:14,313 INFO L354 Elim1Store]: treesize reduction 2057, result has 17.4 percent of original size [2021-11-13 01:46:14,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 122 treesize of output 477 [2021-11-13 01:54:35,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-13 01:54:35,102 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-13 01:54:35,104 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:54:35,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917394571] [2021-11-13 01:54:35,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-13 01:54:35,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [447904798] [2021-11-13 01:54:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:54:35,106 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:54:35,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:54:35,114 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:54:35,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-13 01:54:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:54:36,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-13 01:54:36,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:54:36,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-13 01:54:36,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417523437] [2021-11-13 01:54:36,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:54:36,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:54:36,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:54:36,048 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:54:36,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 01:54:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:54:36,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-13 01:54:36,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:54:36,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-13 01:54:36,368 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:54:36,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 01:54:36,369 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-13 01:54:36,369 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 01:54:36,374 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-13 01:54:36,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2021-11-13 01:54:36,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2021-11-13 01:54:36,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2021-11-13 01:54:36,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2021-11-13 01:54:36,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:54:36,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:54:36,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-13 01:54:36,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa310f49-1045-46ba-b5c3-a6092f462277/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:54:36,982 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-11-13 01:54:36,987 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 01:54:36,987 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:54:37,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:54:37 BasicIcfg [2021-11-13 01:54:37,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:54:37,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:54:37,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:54:37,066 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:54:37,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:45" (3/4) ... [2021-11-13 01:54:37,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:54:37,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:54:37,072 INFO L158 Benchmark]: Toolchain (without parser) took 712871.74ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.7MB in the beginning and 28.1MB in the end (delta: 12.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-13 01:54:37,073 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:54:37,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.98ms. Allocated memory is still 75.5MB. Free memory was 40.6MB in the beginning and 54.5MB in the end (delta: -14.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-13 01:54:37,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.54ms. Allocated memory is still 75.5MB. Free memory was 54.5MB in the beginning and 51.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:54:37,074 INFO L158 Benchmark]: Boogie Preprocessor took 88.33ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:54:37,075 INFO L158 Benchmark]: RCFGBuilder took 1032.61ms. Allocated memory is still 75.5MB. Free memory was 49.4MB in the beginning and 36.9MB in the end (delta: 12.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2021-11-13 01:54:37,076 INFO L158 Benchmark]: TraceAbstraction took 711107.67ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.4MB in the beginning and 28.8MB in the end (delta: 7.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-11-13 01:54:37,076 INFO L158 Benchmark]: Witness Printer took 10.67ms. Allocated memory is still 92.3MB. Free memory was 28.8MB in the beginning and 28.1MB in the end (delta: 734.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:54:37,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.98ms. Allocated memory is still 75.5MB. Free memory was 40.6MB in the beginning and 54.5MB in the end (delta: -14.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.54ms. Allocated memory is still 75.5MB. Free memory was 54.5MB in the beginning and 51.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.33ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1032.61ms. Allocated memory is still 75.5MB. Free memory was 49.4MB in the beginning and 36.9MB in the end (delta: 12.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 711107.67ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.4MB in the beginning and 28.8MB in the end (delta: 7.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 10.67ms. Allocated memory is still 92.3MB. Free memory was 28.8MB in the beginning and 28.1MB in the end (delta: 734.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.6s, 228 PlacesBefore, 47 PlacesAfterwards, 234 TransitionsBefore, 40 TransitionsAfterwards, 1824 CoEnabledTransitionPairs, 9 FixpointIterations, 159 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 24 TrivialYvCompositions, 8 ConcurrentYvCompositions, 13 ChoiceCompositions, 231 TotalNumberOfCompositions, 3454 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2752, positive: 2660, positive conditional: 0, positive unconditional: 2660, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1204, positive: 1185, positive conditional: 0, positive unconditional: 1185, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1204, positive: 1184, positive conditional: 0, positive unconditional: 1184, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 894, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 827, negative conditional: 0, negative unconditional: 827, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2752, positive: 1475, positive conditional: 0, positive unconditional: 1475, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 1204, unknown conditional: 0, unknown unconditional: 1204] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 150]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40] 0 int* q1; [L41] 0 int* q2; [L42] 0 int i, j, total, C, N, M, q1_front, q1_back, q2_front, q2_back, n1, n2; [L120] 0 pthread_t t1, t2, t3, t4; [L122] 0 C = __VERIFIER_nondet_int() [L123] 0 M = __VERIFIER_nondet_int() [L124] 0 N = __VERIFIER_nondet_int() [L126] 0 q1_front = __VERIFIER_nondet_int() [L127] 0 q1_back = __VERIFIER_nondet_int() [L128] 0 q2_front = __VERIFIER_nondet_int() [L129] 0 q2_back = __VERIFIER_nondet_int() [L131] 0 n1 = __VERIFIER_nondet_int() [L132] 0 n2 = __VERIFIER_nondet_int() [L133] CALL, EXPR 0 create_fresh_int_array(n1) [L156] CALL 0 assume_abort_if_not(size >= 0) [L37] COND FALSE 0 !(!cond) [L156] RET 0 assume_abort_if_not(size >= 0) [L157] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE 0 !(!cond) [L157] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L159] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] 0 int i = 0; [L160] COND TRUE 0 i < size [L161] 0 arr[i] = __VERIFIER_nondet_int() [L160] 0 i++ [L163] 0 return arr; [L133] RET, EXPR 0 create_fresh_int_array(n1) [L133] 0 q1 = create_fresh_int_array(n1) [L134] CALL, EXPR 0 create_fresh_int_array(n2) [L156] CALL 0 assume_abort_if_not(size >= 0) [L37] COND FALSE 0 !(!cond) [L156] RET 0 assume_abort_if_not(size >= 0) [L157] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND TRUE 0 !cond [L157] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L159] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] 0 int i = 0; [L160] COND FALSE 0 !(i < size) [L163] 0 return arr; [L134] RET, EXPR 0 create_fresh_int_array(n2) [L134] 0 q2 = create_fresh_int_array(n2) [L136] CALL 0 assume_abort_if_not(C > -2147483648) [L37] COND FALSE 0 !(!cond) [L136] RET 0 assume_abort_if_not(C > -2147483648) [L137] CALL 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L37] COND FALSE 0 !(!cond) [L137] RET 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L140] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L49] 1 _Bool cond = i < N; [L51] COND TRUE 1 \read(cond) [L53] EXPR 1 q1_back >= 0 && q1_back < n1 && q1[q1_back] == C [L53] EXPR 1 q1[q1_back] [L53] EXPR 1 q1_back >= 0 && q1_back < n1 && q1[q1_back] == C [L53] CALL 1 assume_abort_if_not(q1_back >= 0 && q1_back < n1 && q1[q1_back] == C) [L37] COND TRUE 1 !cond [L53] RET 1 assume_abort_if_not(q1_back >= 0 && q1_back < n1 && q1[q1_back] == C) [L54] 1 q1_back++ [L55] 1 i++ [L58] 1 cond = i < N [L51] COND FALSE 1 !(\read(cond)) [L62] 1 return 0; [L141] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L67] 2 _Bool cond = j < M; [L69] COND FALSE 2 !(\read(cond)) [L80] 2 return 0; [L142] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) [L85] 3 _Bool cond = i < N || q1_front < q1_back; [L87] COND TRUE 3 \read(cond) [L89] CALL 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L37] COND TRUE 3 !cond [L89] RET 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L90] EXPR 3 q1[q1_front] [L90] CALL, EXPR 3 plus(total, q1[q1_front]) [L167] CALL 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L37] COND TRUE 3 !cond [L167] RET 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L168] CALL 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND TRUE 3 !cond [L168] RET 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L169] 3 return a + b; [L90] RET, EXPR 3 plus(total, q1[q1_front]) [L90] 3 total = plus(total, q1[q1_front]) [L91] 3 q1_front++ [L143] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L103] 4 _Bool cond = j < M || q2_front < q2_back; [L144] 0 \read(t1) [L144] FCALL, JOIN 1 pthread_join(t1, 0) [L145] 0 \read(t2) [L145] FCALL, JOIN 2 pthread_join(t2, 0) [L146] 0 \read(t3) [L116] 4 return 0; [L94] 3 cond = i < N || q1_front < q1_back [L98] 3 return 0; [L146] FCALL, JOIN 3 pthread_join(t3, 0) [L147] 0 \read(t4) [L147] FCALL, JOIN 4 pthread_join(t4, 0) [L149] CALL 0 assume_abort_if_not(total <= 0) [L37] COND TRUE 0 !cond [L149] RET 0 assume_abort_if_not(total <= 0) [L150] 0 reach_error() - UnprovableResult [Line: 140]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 143]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 248 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 710.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 25.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 316 SdHoareTripleChecker+Valid, 2133.51ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 316 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 1846.91ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 421 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 611 IncrementalHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 33 mSDtfsCounter, 611 mSolverCounterSat, 9.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=839occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 854 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 678.7s InterpolantComputationTime, 144 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 60 NumberOfNonLiveVariables, 698 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 8/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN