./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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_c0194817-d52e-4265-8f21-e43ffde0c058/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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- 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 07:47:15,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:47:15,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:47:15,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:47:15,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:47:15,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:47:15,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:47:15,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:47:15,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:47:15,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:47:15,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:47:15,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:47:15,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:47:15,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:47:15,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:47:15,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:47:15,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:47:15,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:47:15,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:47:15,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:47:15,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:47:15,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:47:15,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:47:15,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:47:15,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:47:15,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:47:15,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:47:15,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:47:15,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:47:15,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:47:15,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:47:15,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:47:15,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:47:15,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:47:15,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:47:15,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:47:15,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:47:15,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:47:15,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:47:15,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:47:15,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:47:15,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 07:47:15,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:47:15,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:47:15,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:47:15,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:47:15,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:47:15,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:47:15,857 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:47:15,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:47:15,857 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:47:15,857 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:47:15,857 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:47:15,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:47:15,858 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:47:15,858 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:47:15,858 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:47:15,858 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:47:15,858 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:47:15,858 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:47:15,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:47:15,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:47:15,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:47:15,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:47:15,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:47:15,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:47:15,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:47:15,861 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_c0194817-d52e-4265-8f21-e43ffde0c058/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-12-14 07:47:16,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:47:16,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:47:16,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:47:16,043 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:47:16,043 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:47:16,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-12-14 07:47:18,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:47:18,774 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:47:18,775 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-12-14 07:47:18,780 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data/795c95ff3/cc23d22857504dd0a13a86ec737608bd/FLAG3cc06c7d4 [2022-12-14 07:47:18,790 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data/795c95ff3/cc23d22857504dd0a13a86ec737608bd [2022-12-14 07:47:18,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:47:18,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:47:18,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:47:18,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:47:18,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:47:18,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:47:18" (1/1) ... [2022-12-14 07:47:18,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae65c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:18, skipping insertion in model container [2022-12-14 07:47:18,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:47:18" (1/1) ... [2022-12-14 07:47:18,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:47:18,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:47:18,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:18,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:18,974 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_c0194817-d52e-4265-8f21-e43ffde0c058/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-12-14 07:47:18,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:47:18,990 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 07:47:18,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38ac9ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:18, skipping insertion in model container [2022-12-14 07:47:18,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:47:18,990 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 07:47:18,991 INFO L158 Benchmark]: Toolchain (without parser) took 197.49ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 82.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 07:47:18,992 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:47:18,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.92ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 82.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 07:47:18,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.92ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 82.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 215]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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_c0194817-d52e-4265-8f21-e43ffde0c058/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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- 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 07:47:20,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:47:20,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:47:20,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:47:20,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:47:20,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:47:20,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:47:20,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:47:20,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:47:20,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:47:20,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:47:20,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:47:20,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:47:20,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:47:20,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:47:20,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:47:20,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:47:20,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:47:20,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:47:20,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:47:20,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:47:20,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:47:20,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:47:20,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:47:20,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:47:20,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:47:20,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:47:20,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:47:20,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:47:20,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:47:20,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:47:20,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:47:20,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:47:20,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:47:20,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:47:20,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:47:20,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:47:20,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:47:20,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:47:20,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:47:20,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:47:20,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 07:47:20,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:47:20,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:47:20,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:47:20,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:47:20,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:47:20,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:47:20,325 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:47:20,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:47:20,325 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:47:20,325 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:47:20,325 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:47:20,325 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:47:20,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:47:20,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:47:20,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:47:20,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:47:20,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:47:20,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:47:20,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:47:20,328 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:47:20,328 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:47:20,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:47:20,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:47:20,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:47:20,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:47:20,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:47:20,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:47:20,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:47:20,329 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:47:20,329 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:47:20,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:47:20,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:47:20,329 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_c0194817-d52e-4265-8f21-e43ffde0c058/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-12-14 07:47:20,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:47:20,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:47:20,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:47:20,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:47:20,579 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:47:20,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-12-14 07:47:23,172 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:47:23,341 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:47:23,341 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-12-14 07:47:23,349 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data/65a3d4ec4/ed909f3781a6427e9163c0dcf562b50d/FLAGd6d5296fe [2022-12-14 07:47:23,364 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/data/65a3d4ec4/ed909f3781a6427e9163c0dcf562b50d [2022-12-14 07:47:23,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:47:23,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:47:23,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:47:23,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:47:23,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:47:23,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ab1337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23, skipping insertion in model container [2022-12-14 07:47:23,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:47:23,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:47:23,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,550 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_c0194817-d52e-4265-8f21-e43ffde0c058/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-12-14 07:47:23,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:47:23,569 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 07:47:23,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:47:23,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,596 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_c0194817-d52e-4265-8f21-e43ffde0c058/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-12-14 07:47:23,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:47:23,602 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:47:23,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:47:23,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:47:23,638 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_c0194817-d52e-4265-8f21-e43ffde0c058/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-12-14 07:47:23,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:47:23,652 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:47:23,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23 WrapperNode [2022-12-14 07:47:23,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:47:23,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:47:23,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:47:23,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:47:23,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,696 INFO L138 Inliner]: procedures = 28, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 446 [2022-12-14 07:47:23,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:47:23,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:47:23,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:47:23,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:47:23,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:47:23,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:47:23,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:47:23,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:47:23,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (1/1) ... [2022-12-14 07:47:23,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:47:23,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:47:23,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:47:23,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:47:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:47:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 07:47:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:47:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 07:47:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 07:47:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 07:47:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 07:47:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 07:47:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 07:47:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 07:47:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-14 07:47:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-14 07:47:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 07:47:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 07:47:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:47:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:47:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:47:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:47:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 07:47:23,789 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 07:47:23,895 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:47:23,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:47:24,672 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:47:24,878 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:47:24,878 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 07:47:24,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:47:24 BoogieIcfgContainer [2022-12-14 07:47:24,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:47:24,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:47:24,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:47:24,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:47:24,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:47:23" (1/3) ... [2022-12-14 07:47:24,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e393270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:47:24, skipping insertion in model container [2022-12-14 07:47:24,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:23" (2/3) ... [2022-12-14 07:47:24,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e393270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:47:24, skipping insertion in model container [2022-12-14 07:47:24,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:47:24" (3/3) ... [2022-12-14 07:47:24,888 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2022-12-14 07:47:24,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:47:24,907 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-12-14 07:47:24,907 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:47:25,015 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 07:47:25,044 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:47:25,055 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 394 transitions, 820 flow [2022-12-14 07:47:25,057 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 394 transitions, 820 flow [2022-12-14 07:47:25,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 394 transitions, 820 flow [2022-12-14 07:47:25,149 INFO L130 PetriNetUnfolder]: 37/390 cut-off events. [2022-12-14 07:47:25,149 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-14 07:47:25,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 390 events. 37/390 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 467 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 331. Up to 8 conditions per place. [2022-12-14 07:47:25,159 INFO L119 LiptonReduction]: Number of co-enabled transitions 10000 [2022-12-14 07:48:10,966 INFO L134 LiptonReduction]: Checked pairs total: 13562 [2022-12-14 07:48:10,966 INFO L136 LiptonReduction]: Total number of compositions: 464 [2022-12-14 07:48:10,973 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 87 transitions, 206 flow [2022-12-14 07:48:11,513 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15555 states, 9553 states have (on average 7.390243902439025) internal successors, (70599), 15554 states have internal predecessors, (70599), 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 07:48:11,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:48:11,539 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;@10280d68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:48:11,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-12-14 07:48:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 15555 states, 9553 states have (on average 7.390243902439025) internal successors, (70599), 15554 states have internal predecessors, (70599), 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 07:48:11,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 07:48:11,573 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:11,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 07:48:11,574 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 07:48:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:11,579 INFO L85 PathProgramCache]: Analyzing trace with hash 64941, now seen corresponding path program 1 times [2022-12-14 07:48:11,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:48:11,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653453907] [2022-12-14 07:48:11,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:11,593 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 07:48:11,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:48:11,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:11,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:11,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:48:11,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:11,885 INFO L321 Elim1Store]: treesize reduction 150, result has 29.6 percent of original size [2022-12-14 07:48:11,885 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 07:48:11,924 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 07:48:11,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:48:11,929 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:48:11,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653453907] [2022-12-14 07:48:11,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653453907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:11,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:11,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:48:11,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273537352] [2022-12-14 07:48:11,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:11,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:48:11,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:48:11,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:48:11,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:48:11,975 INFO L87 Difference]: Start difference. First operand has 15555 states, 9553 states have (on average 7.390243902439025) internal successors, (70599), 15554 states have internal predecessors, (70599), 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 07:48:12,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:12,562 INFO L93 Difference]: Finished difference Result 15550 states and 70594 transitions. [2022-12-14 07:48:12,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:48:12,565 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 07:48:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:12,720 INFO L225 Difference]: With dead ends: 15550 [2022-12-14 07:48:12,720 INFO L226 Difference]: Without dead ends: 15550 [2022-12-14 07:48:12,721 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 07:48:12,723 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:12,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 07:48:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15550 states. [2022-12-14 07:48:13,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15550 to 15550. [2022-12-14 07:48:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15550 states, 9553 states have (on average 7.3897205066471265) internal successors, (70594), 15549 states have internal predecessors, (70594), 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 07:48:13,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15550 states to 15550 states and 70594 transitions. [2022-12-14 07:48:13,554 INFO L78 Accepts]: Start accepts. Automaton has 15550 states and 70594 transitions. Word has length 2 [2022-12-14 07:48:13,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:13,555 INFO L495 AbstractCegarLoop]: Abstraction has 15550 states and 70594 transitions. [2022-12-14 07:48:13,555 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 07:48:13,555 INFO L276 IsEmpty]: Start isEmpty. Operand 15550 states and 70594 transitions. [2022-12-14 07:48:13,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 07:48:13,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:13,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 07:48:13,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:13,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:13,757 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 07:48:13,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:13,759 INFO L85 PathProgramCache]: Analyzing trace with hash 64942, now seen corresponding path program 1 times [2022-12-14 07:48:13,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:48:13,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813490793] [2022-12-14 07:48:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:13,762 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 07:48:13,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:48:13,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:13,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:13,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 07:48:13,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:14,154 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 07:48:14,154 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 07:48:14,183 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 07:48:14,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:48:14,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:48:14,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813490793] [2022-12-14 07:48:14,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813490793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:14,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:14,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:48:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070999803] [2022-12-14 07:48:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:14,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:48:14,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:48:14,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:48:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:48:14,186 INFO L87 Difference]: Start difference. First operand 15550 states and 70594 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 07:48:15,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:15,085 INFO L93 Difference]: Finished difference Result 31095 states and 141183 transitions. [2022-12-14 07:48:15,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:48:15,085 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 07:48:15,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:15,277 INFO L225 Difference]: With dead ends: 31095 [2022-12-14 07:48:15,278 INFO L226 Difference]: Without dead ends: 31095 [2022-12-14 07:48:15,278 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 07:48:15,279 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:15,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 07:48:15,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31095 states. [2022-12-14 07:48:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31095 to 15554. [2022-12-14 07:48:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15554 states, 9557 states have (on average 7.387673956262425) internal successors, (70604), 15553 states have internal predecessors, (70604), 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 07:48:16,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15554 states to 15554 states and 70604 transitions. [2022-12-14 07:48:16,142 INFO L78 Accepts]: Start accepts. Automaton has 15554 states and 70604 transitions. Word has length 2 [2022-12-14 07:48:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:16,142 INFO L495 AbstractCegarLoop]: Abstraction has 15554 states and 70604 transitions. [2022-12-14 07:48:16,143 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 07:48:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand 15554 states and 70604 transitions. [2022-12-14 07:48:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 07:48:16,143 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:16,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 07:48:16,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:16,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:16,346 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 07:48:16,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:16,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2020980, now seen corresponding path program 1 times [2022-12-14 07:48:16,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:48:16,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286175283] [2022-12-14 07:48:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:16,352 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 07:48:16,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:48:16,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:16,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:16,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 07:48:16,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:16,673 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 07:48:16,674 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 07:48:16,718 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 07:48:16,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:48:16,893 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 07:48:16,893 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:48:16,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286175283] [2022-12-14 07:48:16,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286175283] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:48:16,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1769032417] [2022-12-14 07:48:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:16,894 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 07:48:16,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 07:48:16,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 07:48:16,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-12-14 07:48:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:16,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 07:48:16,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:17,158 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 07:48:17,159 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 07:48:17,198 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 07:48:17,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:48:17,260 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 07:48:17,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1769032417] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:48:17,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6982287] [2022-12-14 07:48:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:17,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:48:17,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:48:17,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:48:17,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:48:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:17,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 07:48:17,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:17,460 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-12-14 07:48:17,460 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 07:48:17,492 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 07:48:17,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:48:17,609 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 07:48:17,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6982287] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:48:17,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 07:48:17,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-12-14 07:48:17,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114341434] [2022-12-14 07:48:17,610 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 07:48:17,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:48:17,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:48:17,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:48:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:48:17,611 INFO L87 Difference]: Start difference. First operand 15554 states and 70604 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 07:48:22,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:22,394 INFO L93 Difference]: Finished difference Result 62189 states and 282371 transitions. [2022-12-14 07:48:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:48:22,396 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 07:48:22,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:22,763 INFO L225 Difference]: With dead ends: 62189 [2022-12-14 07:48:22,763 INFO L226 Difference]: Without dead ends: 62189 [2022-12-14 07:48:22,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:48:22,764 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 712 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:22,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 0 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 07:48:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62189 states. [2022-12-14 07:48:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62189 to 15566. [2022-12-14 07:48:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15566 states, 9569 states have (on average 7.381544571010555) internal successors, (70634), 15565 states have internal predecessors, (70634), 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 07:48:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15566 states to 15566 states and 70634 transitions. [2022-12-14 07:48:23,812 INFO L78 Accepts]: Start accepts. Automaton has 15566 states and 70634 transitions. Word has length 3 [2022-12-14 07:48:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:23,812 INFO L495 AbstractCegarLoop]: Abstraction has 15566 states and 70634 transitions. [2022-12-14 07:48:23,812 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 07:48:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 15566 states and 70634 transitions. [2022-12-14 07:48:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:48:23,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:23,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:48:23,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-12-14 07:48:24,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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)] Forceful destruction successful, exit code 0 [2022-12-14 07:48:24,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:48:24,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:48:24,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-12-14 07:48:24,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:24,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1945734587, now seen corresponding path program 1 times [2022-12-14 07:48:24,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:48:24,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882157679] [2022-12-14 07:48:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:24,423 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 07:48:24,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:48:24,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:24,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:24,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 07:48:24,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:24,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,762 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-12-14 07:48:24,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 41 [2022-12-14 07:48:24,821 INFO L321 Elim1Store]: treesize reduction 26, result has 16.1 percent of original size [2022-12-14 07:48:24,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 146 [2022-12-14 07:48:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:48:24,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:48:24,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:24,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:48:25,022 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 07:48:25,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:48:25,022 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:48:25,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882157679] [2022-12-14 07:48:25,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882157679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:25,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:25,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:48:25,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174987341] [2022-12-14 07:48:25,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:25,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:48:25,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:48:25,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:48:25,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:48:25,024 INFO L87 Difference]: Start difference. First operand 15566 states and 70634 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 07:48:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:25,488 INFO L93 Difference]: Finished difference Result 12541 states and 55509 transitions. [2022-12-14 07:48:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:48:25,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-12-14 07:48:25,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:25,550 INFO L225 Difference]: With dead ends: 12541 [2022-12-14 07:48:25,550 INFO L226 Difference]: Without dead ends: 12541 [2022-12-14 07:48:25,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:48:25,551 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 142 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:25,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 07:48:25,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12541 states. [2022-12-14 07:48:25,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12541 to 12541. [2022-12-14 07:48:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12541 states, 8170 states have (on average 6.794247246022032) internal successors, (55509), 12540 states have internal predecessors, (55509), 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 07:48:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12541 states to 12541 states and 55509 transitions. [2022-12-14 07:48:25,960 INFO L78 Accepts]: Start accepts. Automaton has 12541 states and 55509 transitions. Word has length 5 [2022-12-14 07:48:25,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:25,960 INFO L495 AbstractCegarLoop]: Abstraction has 12541 states and 55509 transitions. [2022-12-14 07:48:25,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 07:48:25,960 INFO L276 IsEmpty]: Start isEmpty. Operand 12541 states and 55509 transitions. [2022-12-14 07:48:25,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:48:25,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:25,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:48:25,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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)] Forceful destruction successful, exit code 0 [2022-12-14 07:48:26,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:26,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-12-14 07:48:26,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:26,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1945734588, now seen corresponding path program 1 times [2022-12-14 07:48:26,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:48:26,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450184102] [2022-12-14 07:48:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:26,166 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 07:48:26,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:48:26,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 07:48:26,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0194817-d52e-4265-8f21-e43ffde0c058/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 (8)] Waiting until timeout for monitored process [2022-12-14 07:48:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:26,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 07:48:26,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:26,582 INFO L321 Elim1Store]: treesize reduction 178, result has 18.7 percent of original size [2022-12-14 07:48:26,583 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 07:48:27,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:27,225 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 07:48:27,225 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 07:48:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:27,837 INFO L321 Elim1Store]: treesize reduction 66, result has 49.2 percent of original size [2022-12-14 07:48:27,837 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 07:48:51,433 WARN L233 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 291 DAG size of output: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:48:51,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:48:53,339 INFO L321 Elim1Store]: treesize reduction 176, result has 67.7 percent of original size [2022-12-14 07:48:53,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 157 treesize of output 509