./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:36:06,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:36:06,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:36:06,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:36:06,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:36:06,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:36:06,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:36:06,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:36:06,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:36:06,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:36:06,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:36:06,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:36:06,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:36:06,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:36:06,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:36:06,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:36:06,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:36:06,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:36:06,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:36:06,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:36:06,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:36:06,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:36:06,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:36:06,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:36:06,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:36:06,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:36:06,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:36:06,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:36:06,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:36:06,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:36:06,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:36:06,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:36:06,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:36:06,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:36:06,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:36:06,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:36:06,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:36:06,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:36:06,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:36:06,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:36:06,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:36:06,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:36:06,777 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:36:06,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:36:06,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:36:06,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:36:06,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:36:06,780 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:36:06,781 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:36:06,781 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:36:06,781 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:36:06,781 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:36:06,782 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:36:06,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:36:06,783 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:36:06,783 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:36:06,784 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:36:06,784 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:36:06,784 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:36:06,784 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:36:06,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:36:06,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:36:06,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:36:06,786 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:36:06,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:36:06,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:36:06,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:36:06,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:36:06,788 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:36:06,788 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:36:06,789 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:36:06,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:36:06,789 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:36:06,789 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:36:06,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:36:06,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:36:06,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:36:06,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:36:06,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:36:06,791 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:36:06,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:36:06,791 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:36:06,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:36:06,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:36:06,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-11-26 00:36:07,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:36:07,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:36:07,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:36:07,169 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:36:07,169 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:36:07,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/twostage_3.i [2022-11-26 00:36:10,238 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:36:10,565 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:36:10,566 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/sv-benchmarks/c/pthread/twostage_3.i [2022-11-26 00:36:10,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data/aa8485dc1/692a5b83bd7f4e52a60aa8eeafa7be25/FLAG4b4208cd0 [2022-11-26 00:36:10,614 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data/aa8485dc1/692a5b83bd7f4e52a60aa8eeafa7be25 [2022-11-26 00:36:10,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:36:10,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:36:10,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:10,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:36:10,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:36:10,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:10" (1/1) ... [2022-11-26 00:36:10,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecd116a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:10, skipping insertion in model container [2022-11-26 00:36:10,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:10" (1/1) ... [2022-11-26 00:36:10,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:36:10,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:36:11,422 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,423 WARN L237 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_d9b01121-3c0b-40a4-a4ab-a48bea049caf/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-26 00:36:11,430 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,434 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,435 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,439 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,442 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,445 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,446 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,449 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:11,449 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,451 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:11,451 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:11,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:11,464 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-26 00:36:11,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@452424c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:11, skipping insertion in model container [2022-11-26 00:36:11,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:11,465 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-26 00:36:11,467 INFO L158 Benchmark]: Toolchain (without parser) took 847.00ms. Allocated memory is still 144.7MB. Free memory was 105.0MB in the beginning and 87.5MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:36:11,468 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 144.7MB. Free memory was 87.7MB in the beginning and 87.5MB in the end (delta: 176.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:36:11,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.66ms. Allocated memory is still 144.7MB. Free memory was 104.7MB in the beginning and 87.5MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:36:11,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 144.7MB. Free memory was 87.7MB in the beginning and 87.5MB in the end (delta: 176.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.66ms. Allocated memory is still 144.7MB. Free memory was 104.7MB in the beginning and 87.5MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1284]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:36:13,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:36:13,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:36:13,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:36:13,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:36:13,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:36:13,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:36:13,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:36:13,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:36:13,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:36:13,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:36:13,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:36:13,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:36:13,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:36:13,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:36:13,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:36:13,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:36:13,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:36:13,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:36:13,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:36:13,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:36:13,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:36:13,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:36:13,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:36:13,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:36:13,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:36:13,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:36:13,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:36:13,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:36:13,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:36:13,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:36:13,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:36:13,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:36:13,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:36:13,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:36:13,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:36:13,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:36:13,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:36:13,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:36:13,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:36:13,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:36:13,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-26 00:36:13,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:36:13,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:36:13,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:36:13,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:36:13,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:36:13,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:36:13,894 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:36:13,895 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:36:13,895 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:36:13,895 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:36:13,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:36:13,896 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:36:13,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:36:13,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:36:13,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:36:13,898 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:36:13,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:36:13,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:36:13,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:36:13,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:36:13,899 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:36:13,900 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:36:13,900 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:36:13,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:36:13,901 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:36:13,901 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:36:13,901 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:36:13,901 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:36:13,902 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:36:13,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:36:13,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:36:13,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:36:13,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:36:13,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:36:13,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:36:13,904 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:36:13,904 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:36:13,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:36:13,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:36:13,905 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_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-11-26 00:36:14,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:36:14,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:36:14,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:36:14,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:36:14,371 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:36:14,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/twostage_3.i [2022-11-26 00:36:17,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:36:17,938 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:36:17,938 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/sv-benchmarks/c/pthread/twostage_3.i [2022-11-26 00:36:17,954 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data/1b186d272/5e649556d52f4165b717e5858f3b9280/FLAG2eac15a8c [2022-11-26 00:36:17,973 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/data/1b186d272/5e649556d52f4165b717e5858f3b9280 [2022-11-26 00:36:17,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:36:17,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:36:17,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:17,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:36:17,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:36:17,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:17" (1/1) ... [2022-11-26 00:36:17,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43fa67f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:17, skipping insertion in model container [2022-11-26 00:36:17,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:17" (1/1) ... [2022-11-26 00:36:18,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:36:18,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:36:18,619 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,622 WARN L237 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_d9b01121-3c0b-40a4-a4ab-a48bea049caf/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-26 00:36:18,626 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,630 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,631 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,636 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,639 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,641 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,643 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,652 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:18,652 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,653 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:18,654 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:18,671 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-26 00:36:18,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:36:18,753 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,754 WARN L237 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_d9b01121-3c0b-40a4-a4ab-a48bea049caf/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-26 00:36:18,755 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,757 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,764 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,770 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,781 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,783 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,784 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,786 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:18,791 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,792 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:18,792 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:18,799 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:36:18,868 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,869 WARN L237 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_d9b01121-3c0b-40a4-a4ab-a48bea049caf/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-26 00:36:18,873 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,877 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,879 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,889 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,904 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,906 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,907 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,908 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:18,909 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,910 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-26 00:36:18,913 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:36:18,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:19,036 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:36:19,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19 WrapperNode [2022-11-26 00:36:19,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:19,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:36:19,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:36:19,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:36:19,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,102 INFO L138 Inliner]: procedures = 376, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 156 [2022-11-26 00:36:19,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:36:19,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:36:19,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:36:19,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:36:19,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:36:19,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:36:19,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:36:19,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:36:19,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (1/1) ... [2022-11-26 00:36:19,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:36:19,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:19,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:36:19,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:36:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:36:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2022-11-26 00:36:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2022-11-26 00:36:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2022-11-26 00:36:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2022-11-26 00:36:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:36:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:36:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:36:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:36:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-26 00:36:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:36:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:36:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:36:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:36:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:36:19,307 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:36:19,510 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:36:19,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:36:20,148 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:36:20,158 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:36:20,158 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 00:36:20,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:20 BoogieIcfgContainer [2022-11-26 00:36:20,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:36:20,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:36:20,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:36:20,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:36:20,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:36:17" (1/3) ... [2022-11-26 00:36:20,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d49b18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:36:20, skipping insertion in model container [2022-11-26 00:36:20,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:19" (2/3) ... [2022-11-26 00:36:20,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d49b18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:36:20, skipping insertion in model container [2022-11-26 00:36:20,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:20" (3/3) ... [2022-11-26 00:36:20,170 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2022-11-26 00:36:20,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:36:20,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-26 00:36:20,190 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:36:20,362 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-26 00:36:20,405 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:36:20,426 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 228 transitions, 478 flow [2022-11-26 00:36:20,438 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 228 transitions, 478 flow [2022-11-26 00:36:20,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 228 transitions, 478 flow [2022-11-26 00:36:20,662 INFO L130 PetriNetUnfolder]: 39/467 cut-off events. [2022-11-26 00:36:20,662 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-26 00:36:20,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 467 events. 39/467 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1971 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 254. Up to 8 conditions per place. [2022-11-26 00:36:20,690 INFO L119 LiptonReduction]: Number of co-enabled transitions 6766 [2022-11-26 00:37:06,293 WARN L233 SmtUtils]: Spent 14.75s on a formula simplification. DAG size of input: 257 DAG size of output: 245 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:37:13,426 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification that was a NOOP. DAG size: 231 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:37:36,114 WARN L233 SmtUtils]: Spent 22.67s on a formula simplification. DAG size of input: 263 DAG size of output: 251 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:37:46,907 WARN L233 SmtUtils]: Spent 10.79s on a formula simplification that was a NOOP. DAG size: 237 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:38:01,013 WARN L233 SmtUtils]: Spent 14.10s on a formula simplification. DAG size of input: 220 DAG size of output: 219 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:38:07,879 WARN L233 SmtUtils]: Spent 6.86s on a formula simplification that was a NOOP. DAG size: 205 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:38:15,505 WARN L233 SmtUtils]: Spent 7.62s on a formula simplification. DAG size of input: 232 DAG size of output: 229 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:38:28,914 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 275 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:41:25,552 WARN L233 SmtUtils]: Spent 2.74m on a formula simplification. DAG size of input: 296 DAG size of output: 286 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:42:35,826 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 286 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:45:22,388 WARN L233 SmtUtils]: Spent 2.78m on a formula simplification. DAG size of input: 309 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:46:48,910 WARN L233 SmtUtils]: Spent 1.44m on a formula simplification that was a NOOP. DAG size: 299 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:46:48,915 INFO L134 LiptonReduction]: Checked pairs total: 16958 [2022-11-26 00:46:48,915 INFO L136 LiptonReduction]: Total number of compositions: 247 [2022-11-26 00:46:48,923 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 63 transitions, 148 flow [2022-11-26 00:46:49,030 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1882 states, 1774 states have (on average 2.732243517474634) internal successors, (4847), 1881 states have internal predecessors, (4847), 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) [2022-11-26 00:46:49,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:46:49,054 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@685ec319, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:46:49,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-26 00:46:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 1882 states, 1774 states have (on average 2.732243517474634) internal successors, (4847), 1881 states have internal predecessors, (4847), 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) [2022-11-26 00:46:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:46:49,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:49,067 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:46:49,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-26 00:46:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:49,073 INFO L85 PathProgramCache]: Analyzing trace with hash 831, now seen corresponding path program 1 times [2022-11-26 00:46:49,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:46:49,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994561425] [2022-11-26 00:46:49,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:49,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:46:49,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:46:49,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:46:49,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:46:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:49,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:46:49,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:46:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:49,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:46:49,194 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:46:49,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994561425] [2022-11-26 00:46:49,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994561425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:49,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:49,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:46:49,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189501772] [2022-11-26 00:46:49,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:49,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:46:49,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:46:49,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:46:49,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:49,232 INFO L87 Difference]: Start difference. First operand has 1882 states, 1774 states have (on average 2.732243517474634) internal successors, (4847), 1881 states have internal predecessors, (4847), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:46:49,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:49,931 INFO L93 Difference]: Finished difference Result 1874 states and 4839 transitions. [2022-11-26 00:46:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:46:49,934 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-26 00:46:49,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:49,966 INFO L225 Difference]: With dead ends: 1874 [2022-11-26 00:46:49,966 INFO L226 Difference]: Without dead ends: 1849 [2022-11-26 00:46:49,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:49,976 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:49,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:46:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-11-26 00:46:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1849. [2022-11-26 00:46:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1754 states have (on average 2.7206385404789053) internal successors, (4772), 1848 states have internal predecessors, (4772), 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) [2022-11-26 00:46:50,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 4772 transitions. [2022-11-26 00:46:50,156 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 4772 transitions. Word has length 1 [2022-11-26 00:46:50,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:50,157 INFO L495 AbstractCegarLoop]: Abstraction has 1849 states and 4772 transitions. [2022-11-26 00:46:50,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:46:50,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 4772 transitions. [2022-11-26 00:46:50,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:46:50,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:50,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:46:50,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:46:50,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:46:50,375 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-26 00:46:50,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:50,376 INFO L85 PathProgramCache]: Analyzing trace with hash 26540, now seen corresponding path program 1 times [2022-11-26 00:46:50,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:46:50,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456034391] [2022-11-26 00:46:50,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:50,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:46:50,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:46:50,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:46:50,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:46:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:50,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:46:50,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:47:04,478 WARN L233 SmtUtils]: Spent 12.81s on a formula simplification. DAG size of input: 195 DAG size of output: 62 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:47:04,479 INFO L321 Elim1Store]: treesize reduction 434, result has 14.9 percent of original size [2022-11-26 00:47:04,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 15 new quantified variables, introduced 15 case distinctions, treesize of input 741 treesize of output 754 [2022-11-26 00:47:05,434 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:47:05,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 729 treesize of output 728 [2022-11-26 00:47:05,559 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:05,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 83 treesize of output 31 [2022-11-26 00:47:06,617 INFO L321 Elim1Store]: treesize reduction 670, result has 24.5 percent of original size [2022-11-26 00:47:06,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 107 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 127 treesize of output 315 [2022-11-26 00:47:06,690 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:07,058 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:07,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 83 treesize of output 31 [2022-11-26 00:47:08,118 INFO L321 Elim1Store]: treesize reduction 670, result has 24.5 percent of original size [2022-11-26 00:47:08,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 107 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 127 treesize of output 315 [2022-11-26 00:47:08,208 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:08,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:08,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:10,751 INFO L321 Elim1Store]: treesize reduction 1056, result has 12.1 percent of original size [2022-11-26 00:47:10,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 107 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 66 case distinctions, treesize of input 491 treesize of output 576 [2022-11-26 00:47:10,858 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:11,338 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:11,791 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:12,248 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:12,616 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:13,191 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:13,651 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:14,143 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:14,644 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:14,938 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:15,498 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:16,062 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:16,358 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:16,712 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:17,022 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:17,296 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-26 00:47:18,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:18,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:47:18,422 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:47:18,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456034391] [2022-11-26 00:47:18,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456034391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:18,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:18,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:47:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116315811] [2022-11-26 00:47:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:18,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:47:18,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:47:18,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:47:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:18,425 INFO L87 Difference]: Start difference. First operand 1849 states and 4772 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:47:19,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:19,287 INFO L93 Difference]: Finished difference Result 1761 states and 4546 transitions. [2022-11-26 00:47:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:19,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-26 00:47:19,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:19,298 INFO L225 Difference]: With dead ends: 1761 [2022-11-26 00:47:19,298 INFO L226 Difference]: Without dead ends: 1761 [2022-11-26 00:47:19,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:19,299 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 50 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:19,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 16 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:47:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-11-26 00:47:19,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1761. [2022-11-26 00:47:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1674 states have (on average 2.7156511350059738) internal successors, (4546), 1760 states have internal predecessors, (4546), 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) [2022-11-26 00:47:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 4546 transitions. [2022-11-26 00:47:19,358 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 4546 transitions. Word has length 2 [2022-11-26 00:47:19,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:19,359 INFO L495 AbstractCegarLoop]: Abstraction has 1761 states and 4546 transitions. [2022-11-26 00:47:19,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:47:19,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 4546 transitions. [2022-11-26 00:47:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:47:19,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:19,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:47:19,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:47:19,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:47:19,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-26 00:47:19,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash 26541, now seen corresponding path program 1 times [2022-11-26 00:47:19,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:47:19,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296656160] [2022-11-26 00:47:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:19,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:47:19,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:47:19,578 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:47:19,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-26 00:47:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:19,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-26 00:47:19,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:47:41,325 WARN L233 SmtUtils]: Spent 20.90s on a formula simplification. DAG size of input: 195 DAG size of output: 65 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:47:41,326 INFO L321 Elim1Store]: treesize reduction 430, result has 15.7 percent of original size [2022-11-26 00:47:41,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 15 new quantified variables, introduced 15 case distinctions, treesize of input 741 treesize of output 758 [2022-11-26 00:47:43,984 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:47:43,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 729 treesize of output 732 [2022-11-26 00:47:44,810 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:44,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 31 [2022-11-26 00:47:44,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:44,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:51,362 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 119 DAG size of output: 54 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:47:51,363 INFO L321 Elim1Store]: treesize reduction 101, result has 40.9 percent of original size [2022-11-26 00:47:51,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 119 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 17 case distinctions, treesize of input 127 treesize of output 162 [2022-11-26 00:47:51,538 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:47:53,348 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:53,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 31 [2022-11-26 00:47:53,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:53,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:59,828 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 119 DAG size of output: 54 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:47:59,829 INFO L321 Elim1Store]: treesize reduction 101, result has 40.9 percent of original size [2022-11-26 00:47:59,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 119 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 17 case distinctions, treesize of input 127 treesize of output 162 [2022-11-26 00:47:59,977 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:01,486 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:01,738 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:09,359 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 461 DAG size of output: 80 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:48:09,360 INFO L321 Elim1Store]: treesize reduction 1424, result has 6.7 percent of original size [2022-11-26 00:48:09,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 16 select indices, 16 select index equivalence classes, 91 disjoint index pairs (out of 120 index pairs), introduced 18 new quantified variables, introduced 63 case distinctions, treesize of input 351 treesize of output 408 [2022-11-26 00:48:10,260 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:14,142 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:17,425 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:20,865 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:23,824 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:25,592 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:28,763 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:28,886 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:29,684 INFO L321 Elim1Store]: treesize reduction 291, result has 28.3 percent of original size [2022-11-26 00:48:29,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 77 treesize of output 150 [2022-11-26 00:48:29,974 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:30,433 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:31,601 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:32,132 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:32,326 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:32,641 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:35,069 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:35,630 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:35,883 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:48:36,309 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-26 00:49:53,745 WARN L233 SmtUtils]: Spent 1.28m on a formula simplification that was a NOOP. DAG size: 246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:49:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:53,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:49:53,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:49:53,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296656160] [2022-11-26 00:49:53,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296656160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:53,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:53,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:49:53,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752158284] [2022-11-26 00:49:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:53,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:49:53,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:49:53,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:49:53,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:53,752 INFO L87 Difference]: Start difference. First operand 1761 states and 4546 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:50:01,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:01,346 INFO L93 Difference]: Finished difference Result 1673 states and 4320 transitions. [2022-11-26 00:50:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:01,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-26 00:50:01,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:01,367 INFO L225 Difference]: With dead ends: 1673 [2022-11-26 00:50:01,367 INFO L226 Difference]: Without dead ends: 1673 [2022-11-26 00:50:01,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 77.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:01,371 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:01,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 11 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-26 00:50:01,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-11-26 00:50:01,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1673. [2022-11-26 00:50:01,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1594 states have (on average 2.710163111668758) internal successors, (4320), 1672 states have internal predecessors, (4320), 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) [2022-11-26 00:50:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 4320 transitions. [2022-11-26 00:50:01,420 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 4320 transitions. Word has length 2 [2022-11-26 00:50:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:01,421 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 4320 transitions. [2022-11-26 00:50:01,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:50:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 4320 transitions. [2022-11-26 00:50:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:50:01,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:01,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:50:01,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:01,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:50:01,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-26 00:50:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:01,635 INFO L85 PathProgramCache]: Analyzing trace with hash 26800, now seen corresponding path program 1 times [2022-11-26 00:50:01,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:50:01,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353137250] [2022-11-26 00:50:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:01,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:50:01,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:50:01,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:50:01,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-26 00:50:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:01,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:50:01,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:01,821 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:50:01,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-26 00:50:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:01,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:01,843 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:50:01,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353137250] [2022-11-26 00:50:01,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353137250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:01,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:01,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:50:01,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644649468] [2022-11-26 00:50:01,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:01,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:01,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:50:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:01,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:01,845 INFO L87 Difference]: Start difference. First operand 1673 states and 4320 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:50:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:02,508 INFO L93 Difference]: Finished difference Result 1585 states and 4094 transitions. [2022-11-26 00:50:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-26 00:50:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:02,517 INFO L225 Difference]: With dead ends: 1585 [2022-11-26 00:50:02,517 INFO L226 Difference]: Without dead ends: 1585 [2022-11-26 00:50:02,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:02,518 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:02,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 16 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:50:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-11-26 00:50:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2022-11-26 00:50:02,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1514 states have (on average 2.7040951122853367) internal successors, (4094), 1584 states have internal predecessors, (4094), 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) [2022-11-26 00:50:02,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 4094 transitions. [2022-11-26 00:50:02,590 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 4094 transitions. Word has length 2 [2022-11-26 00:50:02,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:02,590 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 4094 transitions. [2022-11-26 00:50:02,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-26 00:50:02,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 4094 transitions. [2022-11-26 00:50:02,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:50:02,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:02,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:50:02,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:02,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:50:02,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-26 00:50:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:02,804 INFO L85 PathProgramCache]: Analyzing trace with hash 26801, now seen corresponding path program 1 times [2022-11-26 00:50:02,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:50:02,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727923339] [2022-11-26 00:50:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:02,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:50:02,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:50:02,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:50:02,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-26 00:50:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:50:03,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:50:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:50:03,187 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:50:03,188 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:50:03,189 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2022-11-26 00:50:03,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 29 remaining) [2022-11-26 00:50:03,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2022-11-26 00:50:03,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2022-11-26 00:50:03,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2022-11-26 00:50:03,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2022-11-26 00:50:03,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2022-11-26 00:50:03,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2022-11-26 00:50:03,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2022-11-26 00:50:03,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2022-11-26 00:50:03,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2022-11-26 00:50:03,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2022-11-26 00:50:03,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2022-11-26 00:50:03,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2022-11-26 00:50:03,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2022-11-26 00:50:03,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2022-11-26 00:50:03,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2022-11-26 00:50:03,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2022-11-26 00:50:03,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2022-11-26 00:50:03,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2022-11-26 00:50:03,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2022-11-26 00:50:03,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2022-11-26 00:50:03,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2022-11-26 00:50:03,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2022-11-26 00:50:03,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (4 of 29 remaining) [2022-11-26 00:50:03,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 29 remaining) [2022-11-26 00:50:03,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 29 remaining) [2022-11-26 00:50:03,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 29 remaining) [2022-11-26 00:50:03,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2022-11-26 00:50:03,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:03,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:50:03,397 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-26 00:50:03,401 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:50:03,401 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:50:03,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:50:03 BasicIcfg [2022-11-26 00:50:03,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:50:03,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:50:03,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:50:03,431 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:50:03,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:20" (3/4) ... [2022-11-26 00:50:03,433 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:50:03,480 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:50:03,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:50:03,481 INFO L158 Benchmark]: Toolchain (without parser) took 825503.89ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 62.7MB in the beginning and 29.7MB in the end (delta: 33.1MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-11-26 00:50:03,481 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:50:03,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1058.68ms. Allocated memory is still 88.1MB. Free memory was 62.7MB in the beginning and 55.1MB in the end (delta: 7.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-11-26 00:50:03,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.60ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 52.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:03,482 INFO L158 Benchmark]: Boogie Preprocessor took 73.74ms. Allocated memory is still 88.1MB. Free memory was 52.3MB in the beginning and 49.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:03,483 INFO L158 Benchmark]: RCFGBuilder took 983.34ms. Allocated memory is still 88.1MB. Free memory was 49.8MB in the beginning and 43.3MB in the end (delta: 6.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:03,483 INFO L158 Benchmark]: TraceAbstraction took 823266.53ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 42.9MB in the beginning and 31.7MB in the end (delta: 11.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-26 00:50:03,483 INFO L158 Benchmark]: Witness Printer took 50.36ms. Allocated memory is still 107.0MB. Free memory was 31.7MB in the beginning and 29.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:03,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1058.68ms. Allocated memory is still 88.1MB. Free memory was 62.7MB in the beginning and 55.1MB in the end (delta: 7.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.60ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 52.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.74ms. Allocated memory is still 88.1MB. Free memory was 52.3MB in the beginning and 49.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 983.34ms. Allocated memory is still 88.1MB. Free memory was 49.8MB in the beginning and 43.3MB in the end (delta: 6.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 823266.53ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 42.9MB in the beginning and 31.7MB in the end (delta: 11.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 50.36ms. Allocated memory is still 107.0MB. Free memory was 31.7MB in the beginning and 29.7MB in the end (delta: 2.1MB). 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: 628.5s, 215 PlacesBefore, 63 PlacesAfterwards, 228 TransitionsBefore, 63 TransitionsAfterwards, 6766 CoEnabledTransitionPairs, 8 FixpointIterations, 96 TrivialSequentialCompositions, 100 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 27 ConcurrentYvCompositions, 13 ChoiceCompositions, 247 TotalNumberOfCompositions, 16958 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7777, independent: 7564, independent conditional: 0, independent unconditional: 7564, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4178, independent: 4140, independent conditional: 0, independent unconditional: 4140, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4178, independent: 4122, independent conditional: 0, independent unconditional: 4122, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 267, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 207, dependent conditional: 0, dependent unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7777, independent: 3424, independent conditional: 0, independent unconditional: 3424, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 4178, unknown conditional: 0, unknown unconditional: 4178] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 239, Positive conditional cache size: 0, Positive unconditional cache size: 239, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1236] static int iTThreads = 2; [L1237] static int iRThreads = 1; [L1238] static int data1Value = 0; [L1239] static int data2Value = 0; [L1240] pthread_mutex_t *data1Lock; [L1241] pthread_mutex_t *data2Lock; [L1274] int i,err; [L1275] COND TRUE argc != 1 [L1276] COND FALSE !(argc != 3) [L1284] data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1285] data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1286] EXPR err = pthread_mutex_init(data1Lock, ((void *)0)) [L1286] COND FALSE !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1290] EXPR err = pthread_mutex_init(data2Lock, ((void *)0)) [L1290] COND FALSE !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1294] EXPR \read(iTThreads) [L1294] pthread_t tPool[iTThreads]; [L1295] EXPR \read(iRThreads) [L1295] pthread_t rPool[iRThreads]; [L1296] i = 0 VAL [\old(argc)=3, \read(iRThreads)=0, \read(iTThreads)=1073741824, argc=3, argv={17:16}, argv={17:16}, data1Lock={-2147483637:0}, data1Value=0, data2Lock={15:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, rPool={-2147483410:0}, tPool={-2147483506:0}] [L1296] EXPR \read(iTThreads) [L1296] COND TRUE i < iTThreads - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1273]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1297]: 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: 1303]: 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: 1268]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 245 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 823.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 628.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 9.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 50 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1882occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 181.8s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 3 ConstructedInterpolants, 2 QuantifiedInterpolants, 1516 SizeOfPredicates, 58 NumberOfNonLiveVariables, 162 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2022-11-26 00:50:03,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9b01121-3c0b-40a4-a4ab-a48bea049caf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)