./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh --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 f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d --- 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-2329fc7 [2022-12-14 08:24:19,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:24:19,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:24:19,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:24:19,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:24:19,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:24:19,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:24:19,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:24:19,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:24:19,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:24:19,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:24:19,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:24:19,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:24:19,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:24:19,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:24:19,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:24:19,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:24:19,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:24:19,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:24:19,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:24:19,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:24:19,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:24:19,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:24:19,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:24:19,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:24:19,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:24:19,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:24:19,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:24:19,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:24:19,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:24:19,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:24:19,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:24:19,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:24:19,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:24:19,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:24:19,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:24:19,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:24:19,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:24:19,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:24:19,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:24:19,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:24:19,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 08:24:19,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:24:19,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:24:19,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:24:19,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:24:19,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:24:19,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:24:19,856 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:24:19,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:24:19,856 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:24:19,856 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:24:19,856 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:24:19,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:24:19,857 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:24:19,857 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:24:19,857 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:24:19,857 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:24:19,857 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:24:19,858 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:24:19,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:24:19,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:24:19,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:24:19,859 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:24:19,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:24:19,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:24:19,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:24:19,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:24:19,859 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:24:19,860 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:24:19,860 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:24:19,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:24:19,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:24:19,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:24:19,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:24:19,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:24:19,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:24:19,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:24:19,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:24:19,861 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:24:19,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:24:19,861 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:24:19,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:24:19,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:24:19,862 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_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d [2022-12-14 08:24:20,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:24:20,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:24:20,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:24:20,068 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:24:20,069 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:24:20,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-12-14 08:24:22,583 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:24:22,750 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:24:22,751 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-12-14 08:24:22,757 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data/93e69d43b/fc82010f048549e2a06ba4ffb75aef81/FLAG033901d97 [2022-12-14 08:24:23,152 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data/93e69d43b/fc82010f048549e2a06ba4ffb75aef81 [2022-12-14 08:24:23,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:24:23,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:24:23,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:24:23,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:24:23,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:24:23,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:24:23" (1/1) ... [2022-12-14 08:24:23,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e5684b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:23, skipping insertion in model container [2022-12-14 08:24:23,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:24:23" (1/1) ... [2022-12-14 08:24:23,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:24:23,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:24:23,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:23,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:23,308 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_cf045d0f-44c1-410f-b696-8ac1340bc813/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-12-14 08:24:23,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:24:23,322 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) [2022-12-14 08:24:23,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@738ab38f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:23, skipping insertion in model container [2022-12-14 08:24:23,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:24:23,323 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 08:24:23,324 INFO L158 Benchmark]: Toolchain (without parser) took 167.48ms. Allocated memory is still 134.2MB. Free memory was 99.2MB in the beginning and 87.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 08:24:23,324 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:24:23,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.94ms. Allocated memory is still 134.2MB. Free memory was 98.9MB in the beginning and 87.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 08:24:23,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.94ms. Allocated memory is still 134.2MB. Free memory was 98.9MB in the beginning and 87.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 195]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh --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 f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d --- 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-2329fc7 [2022-12-14 08:24:24,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:24:24,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:24:24,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:24:24,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:24:24,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:24:24,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:24:24,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:24:24,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:24:24,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:24:24,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:24:24,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:24:24,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:24:24,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:24:24,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:24:24,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:24:24,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:24:24,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:24:24,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:24:24,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:24:24,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:24:24,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:24:24,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:24:24,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:24:24,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:24:24,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:24:24,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:24:24,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:24:24,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:24:24,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:24:24,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:24:24,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:24:24,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:24:24,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:24:24,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:24:24,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:24:24,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:24:24,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:24:24,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:24:24,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:24:24,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:24:24,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 08:24:24,645 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:24:24,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:24:24,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:24:24,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:24:24,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:24:24,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:24:24,647 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:24:24,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:24:24,647 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:24:24,647 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:24:24,647 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:24:24,648 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:24:24,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:24:24,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:24:24,649 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:24:24,650 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:24:24,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:24:24,650 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:24:24,650 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:24:24,650 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:24:24,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:24:24,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:24:24,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:24:24,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:24:24,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:24:24,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:24:24,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:24:24,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:24:24,651 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:24:24,651 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:24:24,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:24:24,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:24:24,652 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_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f484a00c18d1df7ceedc12992e35584262ebeacdaf88de41be4bc57f4fb5401d [2022-12-14 08:24:24,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:24:24,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:24:24,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:24:24,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:24:24,879 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:24:24,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-12-14 08:24:27,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:24:27,609 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:24:27,609 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2022-12-14 08:24:27,615 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data/42a74b5c4/d890920d2f5f409085d5d838cfdb4582/FLAGc37777eee [2022-12-14 08:24:27,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/data/42a74b5c4/d890920d2f5f409085d5d838cfdb4582 [2022-12-14 08:24:27,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:24:27,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:24:27,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:24:27,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:24:27,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:24:27,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c2943e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27, skipping insertion in model container [2022-12-14 08:24:27,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:24:27,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:24:27,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,804 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_cf045d0f-44c1-410f-b696-8ac1340bc813/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-12-14 08:24:27,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:24:27,823 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 08:24:27,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:24:27,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,850 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_cf045d0f-44c1-410f-b696-8ac1340bc813/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-12-14 08:24:27,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:24:27,857 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:24:27,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:24:27,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:24:27,894 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_cf045d0f-44c1-410f-b696-8ac1340bc813/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-12-14 08:24:27,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:24:27,915 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:24:27,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27 WrapperNode [2022-12-14 08:24:27,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:24:27,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:24:27,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:24:27,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:24:27,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,964 INFO L138 Inliner]: procedures = 28, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 442 [2022-12-14 08:24:27,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:24:27,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:24:27,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:24:27,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:24:27,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:27,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:28,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:28,004 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:28,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:28,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:24:28,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:24:28,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:24:28,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:24:28,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (1/1) ... [2022-12-14 08:24:28,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:24:28,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:24:28,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:24:28,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:24:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:24:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 08:24:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:24:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 08:24:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 08:24:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 08:24:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 08:24:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 08:24:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 08:24:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 08:24:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-14 08:24:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-14 08:24:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 08:24:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 08:24:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:24:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:24:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:24:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:24:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 08:24:28,077 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:24:28,194 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:24:28,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:24:28,982 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:24:29,249 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:24:29,249 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 08:24:29,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:24:29 BoogieIcfgContainer [2022-12-14 08:24:29,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:24:29,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:24:29,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:24:29,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:24:29,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:24:27" (1/3) ... [2022-12-14 08:24:29,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31046de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:24:29, skipping insertion in model container [2022-12-14 08:24:29,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:24:27" (2/3) ... [2022-12-14 08:24:29,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31046de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:24:29, skipping insertion in model container [2022-12-14 08:24:29,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:24:29" (3/3) ... [2022-12-14 08:24:29,259 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2022-12-14 08:24:29,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:24:29,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-12-14 08:24:29,278 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:24:29,401 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 08:24:29,436 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:24:29,451 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 366 transitions, 764 flow [2022-12-14 08:24:29,453 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 366 transitions, 764 flow [2022-12-14 08:24:29,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 366 transitions, 764 flow [2022-12-14 08:24:29,545 INFO L130 PetriNetUnfolder]: 25/362 cut-off events. [2022-12-14 08:24:29,545 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-14 08:24:29,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 362 events. 25/362 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 307. Up to 2 conditions per place. [2022-12-14 08:24:29,552 INFO L119 LiptonReduction]: Number of co-enabled transitions 6208 [2022-12-14 08:25:28,614 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 161 DAG size of output: 160 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:25:39,743 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 167 DAG size of output: 166 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:25:40,284 INFO L134 LiptonReduction]: Checked pairs total: 20621 [2022-12-14 08:25:40,284 INFO L136 LiptonReduction]: Total number of compositions: 401 [2022-12-14 08:25:40,290 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 95 transitions, 222 flow [2022-12-14 08:25:41,277 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32015 states, 26013 states have (on average 5.636489447583901) internal successors, (146622), 32014 states have internal predecessors, (146622), 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) [2022-12-14 08:25:41,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:25:41,300 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;@66ba191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:25:41,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-12-14 08:25:41,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 32015 states, 26013 states have (on average 5.636489447583901) internal successors, (146622), 32014 states have internal predecessors, (146622), 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) [2022-12-14 08:25:41,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:25:41,347 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:25:41,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:25:41,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-12-14 08:25:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:25:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash 61406, now seen corresponding path program 1 times [2022-12-14 08:25:41,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:25:41,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611399244] [2022-12-14 08:25:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:41,365 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 [2022-12-14 08:25:41,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:25:41,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:25:41,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:25:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:41,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:25:41,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:25:41,657 INFO L321 Elim1Store]: treesize reduction 150, result has 29.6 percent of original size [2022-12-14 08:25:41,657 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 4 case distinctions, treesize of input 18 treesize of output 70 [2022-12-14 08:25:41,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:41,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:25:41,689 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:25:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611399244] [2022-12-14 08:25:41,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611399244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:25:41,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:25:41,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:25:41,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068045193] [2022-12-14 08:25:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:25:41,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:25:41,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:25:41,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:25:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:25:41,773 INFO L87 Difference]: Start difference. First operand has 32015 states, 26013 states have (on average 5.636489447583901) internal successors, (146622), 32014 states have internal predecessors, (146622), 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 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) [2022-12-14 08:25:42,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:25:42,557 INFO L93 Difference]: Finished difference Result 30410 states and 139224 transitions. [2022-12-14 08:25:42,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:25:42,559 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 [2022-12-14 08:25:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:25:42,864 INFO L225 Difference]: With dead ends: 30410 [2022-12-14 08:25:42,864 INFO L226 Difference]: Without dead ends: 30410 [2022-12-14 08:25:42,865 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 [2022-12-14 08:25:42,867 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:25:42,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 08:25:42,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30410 states. [2022-12-14 08:25:43,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30410 to 30410. [2022-12-14 08:25:43,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30410 states, 24850 states have (on average 5.602575452716298) internal successors, (139224), 30409 states have internal predecessors, (139224), 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) [2022-12-14 08:25:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30410 states to 30410 states and 139224 transitions. [2022-12-14 08:25:44,060 INFO L78 Accepts]: Start accepts. Automaton has 30410 states and 139224 transitions. Word has length 2 [2022-12-14 08:25:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:25:44,060 INFO L495 AbstractCegarLoop]: Abstraction has 30410 states and 139224 transitions. [2022-12-14 08:25:44,060 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) [2022-12-14 08:25:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 30410 states and 139224 transitions. [2022-12-14 08:25:44,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:25:44,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:25:44,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:25:44,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:25:44,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:25:44,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-12-14 08:25:44,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:25:44,265 INFO L85 PathProgramCache]: Analyzing trace with hash 61407, now seen corresponding path program 1 times [2022-12-14 08:25:44,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:25:44,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287031926] [2022-12-14 08:25:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:44,268 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 [2022-12-14 08:25:44,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:25:44,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:25:44,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:25:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:44,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 08:25:44,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:25:44,645 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 08:25:44,646 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-12-14 08:25:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:44,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:25:44,678 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:25:44,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287031926] [2022-12-14 08:25:44,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287031926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:25:44,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:25:44,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:25:44,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575633347] [2022-12-14 08:25:44,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:25:44,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:25:44,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:25:44,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:25:44,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:25:44,680 INFO L87 Difference]: Start difference. First operand 30410 states and 139224 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) [2022-12-14 08:25:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:25:46,122 INFO L93 Difference]: Finished difference Result 60815 states and 278443 transitions. [2022-12-14 08:25:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:25:46,123 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 [2022-12-14 08:25:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:25:46,485 INFO L225 Difference]: With dead ends: 60815 [2022-12-14 08:25:46,485 INFO L226 Difference]: Without dead ends: 60815 [2022-12-14 08:25:46,486 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 [2022-12-14 08:25:46,486 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:25:46,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 08:25:46,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60815 states. [2022-12-14 08:25:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60815 to 30414. [2022-12-14 08:25:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30414 states, 24854 states have (on average 5.602076124567474) internal successors, (139234), 30413 states have internal predecessors, (139234), 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) [2022-12-14 08:25:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30414 states to 30414 states and 139234 transitions. [2022-12-14 08:25:47,898 INFO L78 Accepts]: Start accepts. Automaton has 30414 states and 139234 transitions. Word has length 2 [2022-12-14 08:25:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:25:47,898 INFO L495 AbstractCegarLoop]: Abstraction has 30414 states and 139234 transitions. [2022-12-14 08:25:47,898 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) [2022-12-14 08:25:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30414 states and 139234 transitions. [2022-12-14 08:25:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:25:47,899 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:25:47,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:25:47,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:25:48,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:25:48,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-12-14 08:25:48,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:25:48,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1909658, now seen corresponding path program 1 times [2022-12-14 08:25:48,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:25:48,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792103304] [2022-12-14 08:25:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:48,105 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 [2022-12-14 08:25:48,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:25:48,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:25:48,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:25:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:48,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 08:25:48,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:25:48,376 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 08:25:48,377 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-12-14 08:25:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:48,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:25:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:48,621 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:25:48,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792103304] [2022-12-14 08:25:48,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792103304] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:25:48,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [48355590] [2022-12-14 08:25:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:48,622 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 08:25:48,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 08:25:48,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 08:25:48,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-12-14 08:25:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:48,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 08:25:48,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:25:48,933 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 08:25:48,934 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-12-14 08:25:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:48,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:25:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:49,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [48355590] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:25:49,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770233811] [2022-12-14 08:25:49,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:49,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:25:49,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:25:49,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:25:49,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:25:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:49,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 08:25:49,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:25:49,297 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 08:25:49,298 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-12-14 08:25:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:49,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:25:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:25:49,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770233811] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:25:49,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 08:25:49,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-12-14 08:25:49,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147775356] [2022-12-14 08:25:49,454 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 08:25:49,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 08:25:49,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:25:49,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 08:25:49,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:25:49,455 INFO L87 Difference]: Start difference. First operand 30414 states and 139234 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-12-14 08:25:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:25:55,487 INFO L93 Difference]: Finished difference Result 121629 states and 556891 transitions. [2022-12-14 08:25:55,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:25:55,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 3 [2022-12-14 08:25:55,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:25:56,529 INFO L225 Difference]: With dead ends: 121629 [2022-12-14 08:25:56,529 INFO L226 Difference]: Without dead ends: 121629 [2022-12-14 08:25:56,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-12-14 08:25:56,530 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 573 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:25:56,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 0 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 08:25:56,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121629 states. [2022-12-14 08:25:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121629 to 30426. [2022-12-14 08:25:58,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30426 states, 24866 states have (on average 5.600579103997426) internal successors, (139264), 30425 states have internal predecessors, (139264), 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) [2022-12-14 08:25:58,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30426 states to 30426 states and 139264 transitions. [2022-12-14 08:25:58,527 INFO L78 Accepts]: Start accepts. Automaton has 30426 states and 139264 transitions. Word has length 3 [2022-12-14 08:25:58,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:25:58,527 INFO L495 AbstractCegarLoop]: Abstraction has 30426 states and 139264 transitions. [2022-12-14 08:25:58,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-12-14 08:25:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 30426 states and 139264 transitions. [2022-12-14 08:25:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 08:25:58,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:25:58,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 08:25:58,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-12-14 08:25:58,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 08:25:58,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:25:59,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:25:59,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-12-14 08:25:59,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:25:59,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1839009220, now seen corresponding path program 1 times [2022-12-14 08:25:59,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:25:59,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483726813] [2022-12-14 08:25:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:25:59,137 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 [2022-12-14 08:25:59,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:25:59,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:25:59,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf045d0f-44c1-410f-b696-8ac1340bc813/bin/utaipan-gh47qXpMRh/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 (7)] Waiting until timeout for monitored process [2022-12-14 08:25:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:25:59,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 08:25:59,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:25:59,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:25:59,441 INFO L321 Elim1Store]: treesize reduction 178, result has 18.7 percent of original size [2022-12-14 08:25:59,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 81 [2022-12-14 08:26:00,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:26:00,107 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 08:26:00,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 52 [2022-12-14 08:26:00,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:26:00,918 INFO L321 Elim1Store]: treesize reduction 66, result has 49.2 percent of original size [2022-12-14 08:26:00,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 83 treesize of output 146 [2022-12-14 08:26:33,291 WARN L233 SmtUtils]: Spent 16.43s on a formula simplification. DAG size of input: 351 DAG size of output: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:26:34,846 INFO L321 Elim1Store]: treesize reduction 88, result has 76.3 percent of original size [2022-12-14 08:26:34,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 147 treesize of output 413