./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:46:06,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:46:06,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:46:06,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:46:06,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:46:06,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:46:06,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:46:06,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:46:06,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:46:06,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:46:06,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:46:06,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:46:06,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:46:06,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:46:06,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:46:06,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:46:06,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:46:06,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:46:06,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:46:06,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:46:06,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:46:06,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:46:06,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:46:06,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:46:06,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:46:06,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:46:06,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:46:06,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:46:06,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:46:06,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:46:06,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:46:06,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:46:06,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:46:06,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:46:06,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:46:06,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:46:06,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:46:06,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:46:06,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:46:06,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:46:06,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:46:06,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-25 18:46:06,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:46:06,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:46:06,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:46:06,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:46:06,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:46:06,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:46:06,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:46:06,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:46:06,758 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:46:06,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:46:06,759 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:46:06,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:46:06,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:46:06,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:46:06,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:46:06,760 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:46:06,760 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:46:06,761 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:46:06,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:46:06,761 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:46:06,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:46:06,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:46:06,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:46:06,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:46:06,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:46:06,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:46:06,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:46:06,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:46:06,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:46:06,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:46:06,764 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:46:06,764 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:46:06,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:46:06,765 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:46:06,765 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:46:06,765 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_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2022-11-25 18:46:07,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:46:07,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:46:07,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:46:07,138 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:46:07,138 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:46:07,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-25 18:46:10,239 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:46:10,528 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:46:10,529 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-25 18:46:10,544 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data/240b6e04f/9978bc9c81a3444dbb576cf29589dd51/FLAG044034060 [2022-11-25 18:46:10,567 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data/240b6e04f/9978bc9c81a3444dbb576cf29589dd51 [2022-11-25 18:46:10,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:46:10,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:46:10,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:10,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:46:10,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:46:10,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:10" (1/1) ... [2022-11-25 18:46:10,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e2394d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:10, skipping insertion in model container [2022-11-25 18:46:10,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:10" (1/1) ... [2022-11-25 18:46:10,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:46:10,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:46:10,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:10,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:10,892 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_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-25 18:46:10,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:10,920 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-25 18:46:10,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2deaf2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:10, skipping insertion in model container [2022-11-25 18:46:10,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:10,922 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-25 18:46:10,925 INFO L158 Benchmark]: Toolchain (without parser) took 347.42ms. Allocated memory is still 188.7MB. Free memory was 157.5MB in the beginning and 146.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:46:10,926 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:46:10,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.60ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 146.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:46:10,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.60ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 146.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 143]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:46:13,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:46:13,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:46:13,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:46:13,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:46:13,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:46:13,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:46:13,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:46:13,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:46:13,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:46:13,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:46:13,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:46:13,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:46:13,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:46:13,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:46:13,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:46:13,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:46:13,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:46:13,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:46:13,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:46:13,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:46:13,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:46:13,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:46:13,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:46:13,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:46:13,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:46:13,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:46:13,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:46:13,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:46:13,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:46:13,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:46:13,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:46:13,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:46:13,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:46:13,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:46:13,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:46:13,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:46:13,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:46:13,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:46:13,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:46:13,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:46:13,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2022-11-25 18:46:13,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:46:13,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:46:13,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:46:13,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:46:13,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:46:13,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:46:13,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:46:13,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:46:13,829 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:46:13,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:46:13,830 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:46:13,831 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:46:13,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:46:13,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:46:13,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:46:13,832 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:46:13,832 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:46:13,832 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:46:13,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:46:13,833 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:46:13,833 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:46:13,833 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:46:13,833 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:46:13,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:46:13,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:46:13,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:46:13,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:46:13,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:46:13,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:46:13,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:46:13,835 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:46:13,835 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:46:13,836 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:46:13,836 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:46:13,836 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:46:13,837 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:46:13,837 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:46:13,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:46:13,837 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_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2022-11-25 18:46:14,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:46:14,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:46:14,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:46:14,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:46:14,314 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:46:14,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-25 18:46:17,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:46:18,253 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:46:18,254 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-25 18:46:18,276 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data/fa3216e5a/403d0df0077f43198aff7e5bf62e93c7/FLAGdfc065f7c [2022-11-25 18:46:18,304 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/data/fa3216e5a/403d0df0077f43198aff7e5bf62e93c7 [2022-11-25 18:46:18,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:46:18,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:46:18,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:18,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:46:18,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:46:18,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd2d296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18, skipping insertion in model container [2022-11-25 18:46:18,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:46:18,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:46:18,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,623 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_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-25 18:46:18,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:18,651 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 18:46:18,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:46:18,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,711 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_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-25 18:46:18,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:18,721 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:46:18,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:18,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:18,758 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_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-25 18:46:18,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:18,779 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:46:18,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18 WrapperNode [2022-11-25 18:46:18,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:18,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:46:18,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:46:18,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:46:18,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,849 INFO L138 Inliner]: procedures = 29, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 172 [2022-11-25 18:46:18,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:46:18,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:46:18,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:46:18,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:46:18,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,887 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:46:18,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:46:18,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:46:18,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:46:18,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (1/1) ... [2022-11-25 18:46:18,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:46:18,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:46:18,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:46:18,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 18:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:46:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:46:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:46:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:46:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:46:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-25 18:46:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-25 18:46:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-25 18:46:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-25 18:46:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:46:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:46:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:46:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:46:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:46:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:46:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 18:46:18,984 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:46:19,116 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:46:19,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:46:19,986 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:46:20,225 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:46:20,227 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 18:46:20,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:46:20 BoogieIcfgContainer [2022-11-25 18:46:20,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:46:20,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:46:20,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:46:20,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:46:20,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:46:18" (1/3) ... [2022-11-25 18:46:20,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5256dce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:46:20, skipping insertion in model container [2022-11-25 18:46:20,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:18" (2/3) ... [2022-11-25 18:46:20,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5256dce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:46:20, skipping insertion in model container [2022-11-25 18:46:20,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:46:20" (3/3) ... [2022-11-25 18:46:20,247 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-11-25 18:46:20,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:46:20,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-25 18:46:20,271 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:46:20,447 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-25 18:46:20,513 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:46:20,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:46:20,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:46:20,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:46:20,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-25 18:46:20,571 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:46:20,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork3 ======== [2022-11-25 18:46:20,597 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=PARTIAL_ORDER_FA, 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;@201900e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:46:20,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 18:46:21,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:46:21,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash -153079861, now seen corresponding path program 1 times [2022-11-25 18:46:21,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:21,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323552311] [2022-11-25 18:46:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:21,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:21,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:21,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:46:21,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 18:46:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:21,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:46:21,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:46:21,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:46:21,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:21,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323552311] [2022-11-25 18:46:21,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323552311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:46:21,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:46:21,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:46:21,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558145204] [2022-11-25 18:46:21,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:46:21,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:46:21,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:21,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:46:21,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:46:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:21,507 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:21,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:46:21,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:21,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:21,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:46:21,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:21,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:46:21,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:21,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1017981857, now seen corresponding path program 1 times [2022-11-25 18:46:21,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:21,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818631839] [2022-11-25 18:46:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:21,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:21,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:21,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:46:21,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 18:46:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:21,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:46:21,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:21,981 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 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-25 18:46:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:46:22,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:46:22,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:22,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818631839] [2022-11-25 18:46:22,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818631839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:46:22,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:46:22,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:46:22,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748442975] [2022-11-25 18:46:22,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:46:22,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:46:22,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:22,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:46:22,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:46:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:22,109 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:22,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:46:22,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:22,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:22,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:22,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 18:46:22,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:22,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:46:22,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:22,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1017981856, now seen corresponding path program 1 times [2022-11-25 18:46:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:22,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253168932] [2022-11-25 18:46:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:22,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:22,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:22,730 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:46:22,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 18:46:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:22,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:46:22,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:23,247 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:46:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:46:23,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:46:23,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:23,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253168932] [2022-11-25 18:46:23,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253168932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:46:23,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:46:23,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 18:46:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794319074] [2022-11-25 18:46:23,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:46:23,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 18:46:23,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:23,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 18:46:23,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-25 18:46:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:23,898 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:23,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.071428571428571) internal successors, (71), 15 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:46:23,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:23,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:23,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:29,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:29,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:46:29,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:29,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:46:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:29,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2087104037, now seen corresponding path program 1 times [2022-11-25 18:46:29,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:29,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102948496] [2022-11-25 18:46:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:29,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:29,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:29,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:46:29,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 18:46:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:29,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:46:29,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:46:29,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:46:29,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:29,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102948496] [2022-11-25 18:46:29,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102948496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:46:29,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:46:29,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:46:29,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788247599] [2022-11-25 18:46:29,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:46:29,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:46:29,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:29,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:46:29,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:46:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:29,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:29,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:46:29,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:29,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:29,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:29,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:30,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:46:30,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:46:30,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:30,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:46:30,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:30,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1424099456, now seen corresponding path program 1 times [2022-11-25 18:46:30,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:30,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842402971] [2022-11-25 18:46:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:30,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:30,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:30,366 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:46:30,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 [2022-11-25 18:46:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:30,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-25 18:46:30,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:30,841 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:46:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:46:31,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:46:31,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:31,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842402971] [2022-11-25 18:46:31,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842402971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:46:31,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:46:31,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:46:31,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297114290] [2022-11-25 18:46:31,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:46:31,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:46:31,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:31,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:46:31,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:46:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:31,099 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:31,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:46:31,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:31,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:31,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:31,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:46:31,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:46:32,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:46:32,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 [2022-11-25 18:46:32,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:32,689 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:46:32,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:32,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2131370657, now seen corresponding path program 1 times [2022-11-25 18:46:32,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:32,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898419867] [2022-11-25 18:46:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:32,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:32,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:32,695 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:46:32,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 [2022-11-25 18:46:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:32,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 18:46:32,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:33,352 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:46:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:46:34,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:46:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:46:37,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:37,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898419867] [2022-11-25 18:46:37,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898419867] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:46:37,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:46:37,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 32 [2022-11-25 18:46:37,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448347087] [2022-11-25 18:46:37,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:46:37,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-25 18:46:37,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:37,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-25 18:46:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=943, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 18:46:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:37,128 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:37,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.5) internal successors, (144), 33 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:46:37,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:37,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:37,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:37,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:46:37,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:46:37,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:46:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:46:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:46:47,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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)] Forceful destruction successful, exit code 0 [2022-11-25 18:46:47,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:47,281 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:46:47,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:47,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1451120769, now seen corresponding path program 2 times [2022-11-25 18:46:47,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:47,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591691233] [2022-11-25 18:46:47,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:46:47,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:46:47,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:47,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:46:47,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 (9)] Waiting until timeout for monitored process [2022-11-25 18:46:47,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:46:47,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:46:47,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-25 18:46:47,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:47,896 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:46:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:46:49,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:46:53,505 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:46:53,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:53,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591691233] [2022-11-25 18:46:53,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591691233] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:46:53,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:46:53,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 40 [2022-11-25 18:46:53,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265259117] [2022-11-25 18:46:53,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:46:53,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-25 18:46:53,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:53,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-25 18:46:53,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1479, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 18:46:53,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:53,520 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:53,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.1) internal successors, (164), 41 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:46:53,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:53,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:46:53,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:46:53,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:46:53,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:46:53,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:46:53,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:47:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:47:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:47:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:47:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:47:28,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:47:28,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:47:28,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:47:28,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:28,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1412381761, now seen corresponding path program 3 times [2022-11-25 18:47:28,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:28,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824496267] [2022-11-25 18:47:28,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:47:28,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:47:28,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:28,733 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:47:28,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 (10)] Waiting until timeout for monitored process [2022-11-25 18:47:28,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-25 18:47:28,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:47:29,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-25 18:47:29,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:29,324 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:47:32,171 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:47:32,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 373 treesize of output 196 [2022-11-25 18:47:32,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 188 [2022-11-25 18:47:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 18:47:32,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:47:34,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-25 18:47:34,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 86 [2022-11-25 18:48:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 18:48:03,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:48:03,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824496267] [2022-11-25 18:48:03,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824496267] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:48:03,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:48:03,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 40 [2022-11-25 18:48:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625199237] [2022-11-25 18:48:03,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:48:03,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-25 18:48:03,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:48:03,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-25 18:48:03,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1403, Unknown=2, NotChecked=0, Total=1560 [2022-11-25 18:48:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:03,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:48:03,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.05) internal successors, (162), 40 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:48:03,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:03,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:48:03,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:48:03,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:48:03,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:48:03,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:48:03,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:48:03,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:20,967 WARN L233 SmtUtils]: Spent 12.44s on a formula simplification. DAG size of input: 44 DAG size of output: 43 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:48:37,345 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 67 DAG size of output: 51 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:49:42,058 WARN L233 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 65 DAG size of output: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:49:59,984 WARN L233 SmtUtils]: Spent 17.02s on a formula simplification. DAG size of input: 85 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:12,771 WARN L233 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 106 DAG size of output: 90 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:24,727 WARN L233 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 72 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:35,161 WARN L233 SmtUtils]: Spent 9.46s on a formula simplification. DAG size of input: 86 DAG size of output: 70 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:44,768 WARN L233 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 106 DAG size of output: 81 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:50:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:50:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:50:45,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-25 18:50:45,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 (10)] Ended with exit code 0 [2022-11-25 18:50:45,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:50:45,936 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:50:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:45,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1531194082, now seen corresponding path program 4 times [2022-11-25 18:50:45,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:45,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350017611] [2022-11-25 18:50:45,938 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 18:50:45,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:50:45,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:45,939 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:50:45,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 (11)] Waiting until timeout for monitored process [2022-11-25 18:50:46,154 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 18:50:46,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:50:46,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-25 18:50:46,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:47,138 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:50:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 18:50:54,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:51:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 18:51:24,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:24,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350017611] [2022-11-25 18:51:24,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350017611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:51:24,756 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:51:24,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 33] total 68 [2022-11-25 18:51:24,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644306929] [2022-11-25 18:51:24,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:51:24,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-11-25 18:51:24,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:24,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-11-25 18:51:24,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=4195, Unknown=0, NotChecked=0, Total=4692 [2022-11-25 18:51:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:24,762 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:24,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 3.0) internal successors, (204), 69 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:51:24,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:24,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:51:24,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:51:24,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:51:24,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:51:24,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:51:24,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:51:24,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-11-25 18:51:24,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:37,323 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 127 DAG size of output: 96 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:52:57,170 WARN L233 SmtUtils]: Spent 15.09s on a formula simplification. DAG size of input: 179 DAG size of output: 138 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:53:06,248 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 118 DAG size of output: 89 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:53:26,561 WARN L233 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 165 DAG size of output: 127 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:53:45,609 WARN L233 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 161 DAG size of output: 124 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:54:16,125 WARN L233 SmtUtils]: Spent 8.00s on a formula simplification. DAG size of input: 147 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:54:35,728 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 143 DAG size of output: 110 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:55:06,798 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 129 DAG size of output: 99 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:55:28,274 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 125 DAG size of output: 96 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:57:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:57:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:57:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:57:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:57:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:57:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:57:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-25 18:57:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-25 18:57:40,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 (11)] Forceful destruction successful, exit code 0 [2022-11-25 18:57:41,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:57:41,048 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-25 18:57:41,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:57:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1980030306, now seen corresponding path program 5 times [2022-11-25 18:57:41,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:57:41,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092285473] [2022-11-25 18:57:41,049 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 18:57:41,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:57:41,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:57:41,051 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:57:41,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec2dc6d-8139-4298-9f44-e99e3a66dfdf/bin/ugemcutter-syNpU3ikLH/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 (12)] Waiting until timeout for monitored process [2022-11-25 18:57:41,713 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2022-11-25 18:57:41,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:57:41,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-25 18:57:41,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:57:42,625 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:57:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 282 proven. 206 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-25 18:57:50,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:57:58,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-25 18:57:58,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 9 [2022-11-25 18:57:58,613 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-25 18:58:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:58:40,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:58:40,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092285473] [2022-11-25 18:58:40,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092285473] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:58:40,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:58:40,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 47] total 86 [2022-11-25 18:58:40,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628119474] [2022-11-25 18:58:40,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:58:40,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-11-25 18:58:40,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:58:40,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-11-25 18:58:40,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=479, Invalid=6831, Unknown=0, NotChecked=0, Total=7310 [2022-11-25 18:58:40,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:40,496 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:58:40,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.1627906976744184) internal successors, (272), 86 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:58:40,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:40,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:58:40,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:58:40,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:58:40,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:58:40,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:58:40,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:58:40,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-11-25 18:58:40,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-11-25 18:58:40,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.