./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-queue-add-3.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_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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_132b084a-b841-4b23-b188-2b7caf3f6e53/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 6990ac65798f2c5a95ce01b01bd39640075d7bea37e69dff3da0d3d7c4b56ab2 --- 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 18:46:44,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:46:44,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:46:44,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:46:44,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:46:44,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:46:44,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:46:44,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:46:44,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:46:44,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:46:44,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:46:44,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:46:44,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:46:44,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:46:44,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:46:44,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:46:44,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:46:44,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:46:44,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:46:44,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:46:44,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:46:44,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:46:44,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:46:44,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:46:44,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:46:44,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:46:44,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:46:44,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:46:44,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:46:44,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:46:44,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:46:44,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:46:44,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:46:44,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:46:44,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:46:44,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:46:44,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:46:44,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:46:44,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:46:44,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:46:44,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:46:44,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-25 18:46:44,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:46:44,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:46:44,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:46:44,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:46:44,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:46:44,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:46:44,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:46:44,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:46:44,862 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:46:44,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:46:44,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:46:44,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:46:44,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:46:44,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:46:44,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:46:44,864 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:46:44,864 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:46:44,864 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:46:44,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:46:44,865 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:46:44,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:46:44,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:46:44,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:46:44,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:46:44,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:46:44,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:46:44,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:46:44,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:46:44,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:46:44,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:46:44,867 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:46:44,868 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:46:44,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:46:44,868 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:46:44,869 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:46:44,869 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_132b084a-b841-4b23-b188-2b7caf3f6e53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6990ac65798f2c5a95ce01b01bd39640075d7bea37e69dff3da0d3d7c4b56ab2 [2022-11-25 18:46:45,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:46:45,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:46:45,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:46:45,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:46:45,199 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:46:45,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2022-11-25 18:46:48,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:46:48,539 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:46:48,539 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2022-11-25 18:46:48,546 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data/ffa696861/67fbc1cfb76b412f8bbc6ccce33fae1d/FLAG3d965d95b [2022-11-25 18:46:48,562 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data/ffa696861/67fbc1cfb76b412f8bbc6ccce33fae1d [2022-11-25 18:46:48,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:46:48,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:46:48,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:48,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:46:48,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:46:48,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:48" (1/1) ... [2022-11-25 18:46:48,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4497bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:48, skipping insertion in model container [2022-11-25 18:46:48,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:48" (1/1) ... [2022-11-25 18:46:48,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:46:48,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:46:48,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:48,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:48,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:48,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:48,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:48,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:48,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:48,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:48,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:48,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:48,792 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_132b084a-b841-4b23-b188-2b7caf3f6e53/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c[3412,3425] [2022-11-25 18:46:48,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:48,813 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 18:46:48,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@465e9bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:48, skipping insertion in model container [2022-11-25 18:46:48,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:48,814 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-25 18:46:48,816 INFO L158 Benchmark]: Toolchain (without parser) took 249.22ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 93.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:46:48,816 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:46:48,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.79ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 93.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:46:48,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.79ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 93.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 135]: 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_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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_132b084a-b841-4b23-b188-2b7caf3f6e53/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 6990ac65798f2c5a95ce01b01bd39640075d7bea37e69dff3da0d3d7c4b56ab2 --- 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 18:46:51,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:46:51,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:46:51,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:46:51,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:46:51,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:46:51,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:46:51,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:46:51,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:46:51,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:46:51,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:46:51,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:46:51,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:46:51,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:46:51,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:46:51,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:46:51,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:46:51,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:46:51,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:46:51,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:46:51,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:46:51,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:46:51,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:46:51,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:46:51,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:46:51,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:46:51,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:46:51,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:46:51,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:46:51,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:46:51,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:46:51,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:46:51,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:46:51,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:46:51,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:46:51,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:46:51,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:46:51,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:46:51,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:46:51,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:46:51,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:46:51,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2022-11-25 18:46:51,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:46:51,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:46:51,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:46:51,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:46:51,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:46:51,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:46:51,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:46:51,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:46:51,249 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:46:51,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:46:51,251 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:46:51,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:46:51,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:46:51,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:46:51,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:46:51,252 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:46:51,252 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:46:51,252 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:46:51,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:46:51,253 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:46:51,253 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:46:51,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:46:51,253 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:46:51,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:46:51,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:46:51,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:46:51,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:46:51,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:46:51,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:46:51,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:46:51,255 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:46:51,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:46:51,256 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:46:51,256 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:46:51,256 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:46:51,256 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:46:51,257 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:46:51,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:46:51,257 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_132b084a-b841-4b23-b188-2b7caf3f6e53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6990ac65798f2c5a95ce01b01bd39640075d7bea37e69dff3da0d3d7c4b56ab2 [2022-11-25 18:46:51,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:46:51,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:46:51,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:46:51,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:46:51,716 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:46:51,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2022-11-25 18:46:55,078 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:46:55,318 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:46:55,319 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2022-11-25 18:46:55,327 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data/96c718b2c/4fc627448cbb4db280e76d51a0697288/FLAG2e85a5b36 [2022-11-25 18:46:55,353 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/data/96c718b2c/4fc627448cbb4db280e76d51a0697288 [2022-11-25 18:46:55,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:46:55,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:46:55,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:55,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:46:55,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:46:55,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d082da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55, skipping insertion in model container [2022-11-25 18:46:55,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:46:55,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:46:55,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,628 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_132b084a-b841-4b23-b188-2b7caf3f6e53/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c[3412,3425] [2022-11-25 18:46:55,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:55,674 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 18:46:55,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:46:55,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,707 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_132b084a-b841-4b23-b188-2b7caf3f6e53/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c[3412,3425] [2022-11-25 18:46:55,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:55,716 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:46:55,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:46:55,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:46:55,765 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_132b084a-b841-4b23-b188-2b7caf3f6e53/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c[3412,3425] [2022-11-25 18:46:55,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:46:55,823 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:46:55,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55 WrapperNode [2022-11-25 18:46:55,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:46:55,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:46:55,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:46:55,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:46:55,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,924 INFO L138 Inliner]: procedures = 27, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 238 [2022-11-25 18:46:55,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:46:55,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:46:55,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:46:55,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:46:55,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,990 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:55,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:46:55,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:46:55,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:46:55,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:46:56,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (1/1) ... [2022-11-25 18:46:56,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:46:56,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:46:56,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:46:56,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:46:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:46:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:46:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:46:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 18:46:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:46:56,101 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:46:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:46:56,101 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:46:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:46:56,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:46:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:46:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:46:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:46:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:46:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:46:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:46:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 18:46:56,105 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 18:46:56,275 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:46:56,277 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:46:57,082 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:46:57,352 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:46:57,352 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 18:46:57,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:46:57 BoogieIcfgContainer [2022-11-25 18:46:57,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:46:57,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:46:57,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:46:57,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:46:57,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:46:55" (1/3) ... [2022-11-25 18:46:57,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37acddea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:46:57, skipping insertion in model container [2022-11-25 18:46:57,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:46:55" (2/3) ... [2022-11-25 18:46:57,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37acddea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:46:57, skipping insertion in model container [2022-11-25 18:46:57,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:46:57" (3/3) ... [2022-11-25 18:46:57,369 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-3.wvr.c [2022-11-25 18:46:57,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:46:57,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-25 18:46:57,392 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:46:57,527 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 18:46:57,588 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:46:57,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:46:57,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:46:57,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:46:57,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-25 18:46:57,657 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:46:57,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2022-11-25 18:46:57,678 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;@5a92d5d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:46:57,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 18:46:58,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:46:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1128704052, now seen corresponding path program 1 times [2022-11-25 18:46:58,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:58,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302010989] [2022-11-25 18:46:58,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:58,276 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 18:46:58,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:58,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:46:58,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:46:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:58,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:46:58,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:58,536 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 18:46:58,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:46:58,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:58,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302010989] [2022-11-25 18:46:58,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302010989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:46:58,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:46:58,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:46:58,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242814935] [2022-11-25 18:46:58,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:46:58,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:46:58,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:46:58,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:46:58,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:58,597 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:58,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 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 18:46:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:58,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:46:58,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:46:58,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:46:58,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:46:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1609712819, now seen corresponding path program 1 times [2022-11-25 18:46:58,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:46:58,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675930375] [2022-11-25 18:46:58,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:46:58,927 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 18:46:58,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:46:58,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:46:58,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:46:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:46:59,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:46:59,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:46:59,299 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 18:46:59,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:46:59,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:46:59,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675930375] [2022-11-25 18:46:59,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675930375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:46:59,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:46:59,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:46:59,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70200489] [2022-11-25 18:46:59,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:46:59,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:46:59,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:46:59,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:46:59,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:46:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:59,308 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:46:59,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.0) internal successors, (112), 3 states have internal predecessors, (112), 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 18:46:59,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:46:59,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:00,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:01,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:47:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:01,117 INFO L85 PathProgramCache]: Analyzing trace with hash -2082012210, now seen corresponding path program 1 times [2022-11-25 18:47:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:01,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472447075] [2022-11-25 18:47:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:01,118 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 18:47:01,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:01,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:01,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:01,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:47:01,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:01,376 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 18:47:01,514 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 18:47:01,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:01,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:01,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472447075] [2022-11-25 18:47:01,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472447075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:01,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:01,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:47:01,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699091110] [2022-11-25 18:47:01,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:01,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:47:01,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:47:01,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:47:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:01,520 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:01,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 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 18:47:01,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:01,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:01,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:03,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:03,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:03,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:47:03,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2082012209, now seen corresponding path program 1 times [2022-11-25 18:47:03,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:03,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871267468] [2022-11-25 18:47:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:03,691 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 18:47:03,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:03,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:03,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:03,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 18:47:03,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:04,561 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 18:47:04,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:04,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:04,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871267468] [2022-11-25 18:47:04,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871267468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:04,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:04,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:47:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330015808] [2022-11-25 18:47:04,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:04,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:47:04,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:04,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:47:04,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:47:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:04,566 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:04,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 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 18:47:04,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:04,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:04,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:04,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:47:07,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:07,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:07,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:47:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:07,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1311920241, now seen corresponding path program 1 times [2022-11-25 18:47:07,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:07,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037263738] [2022-11-25 18:47:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:07,396 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 18:47:07,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:07,398 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:07,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:07,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:47:07,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:08,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:47:08,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:08,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:08,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037263738] [2022-11-25 18:47:08,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037263738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:08,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:08,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:47:08,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502318880] [2022-11-25 18:47:08,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:08,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:47:08,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:08,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:47:08,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:47:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:08,238 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:08,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 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 18:47:08,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:08,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:08,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:08,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:47:08,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:47:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:47:09,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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)] Ended with exit code 0 [2022-11-25 18:47:10,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:10,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:47:10,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:10,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1713304714, now seen corresponding path program 1 times [2022-11-25 18:47:10,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:10,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206460721] [2022-11-25 18:47:10,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:10,172 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 18:47:10,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:10,175 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:10,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:10,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 18:47:10,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:10,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:47:10,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:10,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:10,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206460721] [2022-11-25 18:47:10,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206460721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:10,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:10,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:47:10,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735146529] [2022-11-25 18:47:10,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:10,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:47:10,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:10,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:47:10,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:47:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:10,357 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:10,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 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 18:47:10,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:10,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:10,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:10,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:47:10,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:47:10,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:47:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:47:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:12,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:12,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:12,683 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:47:12,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1713304715, now seen corresponding path program 1 times [2022-11-25 18:47:12,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:12,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417953333] [2022-11-25 18:47:12,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:12,685 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 18:47:12,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:12,686 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:12,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:47:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:12,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 18:47:12,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:47:14,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:47:14,848 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 35 treesize of output 31 [2022-11-25 18:47:22,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:47:22,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:22,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417953333] [2022-11-25 18:47:22,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417953333] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:47:22,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:47:22,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 37 [2022-11-25 18:47:22,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930200853] [2022-11-25 18:47:22,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:47:22,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-25 18:47:22,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:22,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-25 18:47:22,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1151, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 18:47:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:22,205 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:22,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 5.594594594594595) internal successors, (207), 38 states have internal predecessors, (207), 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 18:47:22,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:22,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:22,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:22,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:47:22,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:47:22,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:22,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:48:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:48:12,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:48:12,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:12,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-25 18:48:12,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:48:12,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:48:12,678 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:48:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:48:12,679 INFO L85 PathProgramCache]: Analyzing trace with hash -523263281, now seen corresponding path program 1 times [2022-11-25 18:48:12,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:48:12,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738314783] [2022-11-25 18:48:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:48:12,680 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 18:48:12,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:48:12,683 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:48:12,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:48:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:48:13,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-25 18:48:13,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:48:13,325 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 18:48:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:48:14,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:48:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:48:22,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:48:22,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738314783] [2022-11-25 18:48:22,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738314783] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:48:22,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:48:22,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 33 [2022-11-25 18:48:22,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952251691] [2022-11-25 18:48:22,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:48:22,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-25 18:48:22,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:48:22,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-25 18:48:22,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:48:22,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:22,588 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:48:22,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.090909090909091) internal successors, (201), 34 states have internal predecessors, (201), 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 18:48:22,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:22,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:22,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:48:22,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:48:22,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:48:22,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:22,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-11-25 18:48:22,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:40,129 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 90 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:48:52,276 WARN L233 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 96 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:49:48,892 WARN L233 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:49:53,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:50:03,754 WARN L233 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:06,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-25 18:50:06,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:06,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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)] Forceful destruction successful, exit code 0 [2022-11-25 18:50:07,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:07,155 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:50:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash -653192011, now seen corresponding path program 1 times [2022-11-25 18:50:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:07,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102091054] [2022-11-25 18:50:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:50:07,157 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 18:50:07,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:07,159 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:07,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:50:07,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:50:07,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:08,009 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:50:08,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2022-11-25 18:50:08,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:50:08,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:50:08,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:50:08,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102091054] [2022-11-25 18:50:08,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102091054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:50:08,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:50:08,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:50:08,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326499522] [2022-11-25 18:50:08,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:50:08,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:50:08,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:50:08,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:50:08,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:50:08,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:08,123 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:50:08,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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 18:50:08,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:08,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:08,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:08,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:08,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:08,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:08,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-11-25 18:50:08,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:08,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-25 18:50:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:50:12,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:12,202 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:50:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash -542837929, now seen corresponding path program 1 times [2022-11-25 18:50:12,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:12,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212706624] [2022-11-25 18:50:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:50:12,203 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 18:50:12,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:12,205 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:12,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:50:12,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-25 18:50:12,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:50:15,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:50:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:50:20,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:50:20,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212706624] [2022-11-25 18:50:20,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212706624] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:50:20,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:50:20,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 29 [2022-11-25 18:50:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096944872] [2022-11-25 18:50:20,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:50:20,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-25 18:50:20,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:50:20,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-25 18:50:20,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2022-11-25 18:50:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:20,331 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:50:20,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.517241379310345) internal successors, (247), 30 states have internal predecessors, (247), 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 18:50:20,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:50:20,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:28,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:50:43,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-25 18:50:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:50:43,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-25 18:50:43,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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)] Forceful destruction successful, exit code 0 [2022-11-25 18:50:43,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:43,504 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:50:43,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:43,505 INFO L85 PathProgramCache]: Analyzing trace with hash 760658937, now seen corresponding path program 2 times [2022-11-25 18:50:43,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:43,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720410794] [2022-11-25 18:50:43,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:50:43,506 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 18:50:43,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:43,508 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:43,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (13)] Waiting until timeout for monitored process [2022-11-25 18:50:43,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:50:43,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:50:43,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-25 18:50:43,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:44,301 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 18:50:44,317 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 18:50:45,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:50:45,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 18:50:45,688 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-25 18:50:45,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-25 18:50:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 18:50:46,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:50:46,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:50:46,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720410794] [2022-11-25 18:50:46,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720410794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:50:46,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:50:46,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 18:50:46,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914537726] [2022-11-25 18:50:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:50:46,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 18:50:46,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:50:46,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 18:50:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-25 18:50:46,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:46,615 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:50:46,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.333333333333334) internal successors, (140), 16 states have internal predecessors, (140), 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 18:50:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-11-25 18:50:46,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:46,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:50:46,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-11-25 18:50:46,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:50:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-25 18:50:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:50:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:50:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-25 18:50:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 18:50:52,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-25 18:50:52,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-25 18:50:52,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 4 remaining) [2022-11-25 18:50:52,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 4 remaining) [2022-11-25 18:50:52,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (13)] Forceful destruction successful, exit code 0 [2022-11-25 18:50:52,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:52,541 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:50:52,543 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (1/4) [2022-11-25 18:50:52,555 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:50:52,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:50:52,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:50:52,557 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:50:52,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2022-11-25 18:50:52,578 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:50:52,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2022-11-25 18:50:52,578 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;@5a92d5d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:50:52,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 18:50:52,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:50:52,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:52,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1803321492, now seen corresponding path program 1 times [2022-11-25 18:50:52,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:52,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209481350] [2022-11-25 18:50:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:50:52,793 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 18:50:52,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:52,803 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:52,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (15)] Waiting until timeout for monitored process [2022-11-25 18:50:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:50:52,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:50:52,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:52,928 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 18:50:52,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:50:52,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:50:52,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209481350] [2022-11-25 18:50:52,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209481350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:50:52,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:50:52,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:50:52,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136559984] [2022-11-25 18:50:52,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:50:52,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:50:52,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:50:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:50:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:50:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:52,930 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:50:52,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 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 18:50:52,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:52,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:52,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (15)] Forceful destruction successful, exit code 0 [2022-11-25 18:50:53,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:53,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:50:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1891489974, now seen corresponding path program 1 times [2022-11-25 18:50:53,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:53,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067673823] [2022-11-25 18:50:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:50:53,155 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 18:50:53,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:53,157 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:53,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (16)] Waiting until timeout for monitored process [2022-11-25 18:50:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:50:53,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:50:53,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:54,403 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 18:50:54,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:50:54,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:50:54,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067673823] [2022-11-25 18:50:54,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067673823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:50:54,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:50:54,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:50:54,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114901765] [2022-11-25 18:50:54,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:50:54,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:50:54,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:50:54,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:50:54,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:50:54,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:54,407 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:50:54,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 12 states have internal predecessors, (106), 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 18:50:54,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:54,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:56,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:56,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (16)] Forceful destruction successful, exit code 0 [2022-11-25 18:50:56,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:56,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:50:56,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:56,787 INFO L85 PathProgramCache]: Analyzing trace with hash 560851432, now seen corresponding path program 1 times [2022-11-25 18:50:56,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:56,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462001922] [2022-11-25 18:50:56,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:50:56,788 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 18:50:56,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:56,789 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:56,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (17)] Waiting until timeout for monitored process [2022-11-25 18:50:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:50:56,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:50:56,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:56,994 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 18:50:57,291 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-25 18:50:57,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 18:50:57,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:50:57,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:50:57,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:50:57,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462001922] [2022-11-25 18:50:57,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462001922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:50:57,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:50:57,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:50:57,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171384289] [2022-11-25 18:50:57,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:50:57,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:50:57,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:50:57,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:50:57,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:50:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:57,446 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:50:57,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.666666666666668) internal successors, (112), 7 states have internal predecessors, (112), 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 18:50:57,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:57,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:57,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:50:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:50:58,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (17)] Forceful destruction successful, exit code 0 [2022-11-25 18:50:58,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:58,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:50:58,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:58,642 INFO L85 PathProgramCache]: Analyzing trace with hash 560851433, now seen corresponding path program 1 times [2022-11-25 18:50:58,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:50:58,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442575290] [2022-11-25 18:50:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:50:58,642 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 18:50:58,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:50:58,643 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:50:58,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (18)] Waiting until timeout for monitored process [2022-11-25 18:50:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:50:58,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 18:50:58,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:50:59,376 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 18:50:59,400 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 18:51:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:51:01,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 18:51:01,357 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-25 18:51:01,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-25 18:51:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:51:01,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:51:16,176 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:51:34,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:51:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:51:39,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:39,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442575290] [2022-11-25 18:51:39,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442575290] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:51:39,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:51:39,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 35 [2022-11-25 18:51:39,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256666481] [2022-11-25 18:51:39,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:51:39,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-25 18:51:39,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:39,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-25 18:51:39,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1047, Unknown=1, NotChecked=0, Total=1260 [2022-11-25 18:51:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:39,330 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:39,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.257142857142857) internal successors, (184), 36 states have internal predecessors, (184), 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 18:51:39,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:39,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:51:39,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:51:39,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:09,399 WARN L233 SmtUtils]: Spent 29.54s on a formula simplification. DAG size of input: 116 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:52:32,341 WARN L233 SmtUtils]: Spent 21.39s on a formula simplification. DAG size of input: 102 DAG size of output: 101 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:52:38,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:52:49,659 WARN L233 SmtUtils]: Spent 10.66s on a formula simplification. DAG size of input: 88 DAG size of output: 87 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:52:51,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:52:53,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:52:56,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:52:59,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:53:13,635 WARN L233 SmtUtils]: Spent 13.40s on a formula simplification. DAG size of input: 97 DAG size of output: 96 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:53:46,262 WARN L233 SmtUtils]: Spent 29.98s on a formula simplification. DAG size of input: 118 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:54:04,516 WARN L233 SmtUtils]: Spent 16.48s on a formula simplification. DAG size of input: 76 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:54:30,683 WARN L233 SmtUtils]: Spent 21.25s on a formula simplification. DAG size of input: 125 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:54:57,677 WARN L233 SmtUtils]: Spent 24.97s on a formula simplification. DAG size of input: 121 DAG size of output: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:55:16,488 WARN L233 SmtUtils]: Spent 16.34s on a formula simplification. DAG size of input: 107 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:55:29,919 WARN L233 SmtUtils]: Spent 11.89s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:55:39,395 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 91 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:55:48,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:55:50,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:56:03,924 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 61 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:56:20,680 WARN L233 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 72 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:56:46,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:57:27,850 WARN L233 SmtUtils]: Spent 21.78s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:57:58,701 WARN L233 SmtUtils]: Spent 25.53s on a formula simplification. DAG size of input: 119 DAG size of output: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:58:19,255 WARN L233 SmtUtils]: Spent 16.98s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:58:36,190 WARN L233 SmtUtils]: Spent 14.23s on a formula simplification. DAG size of input: 103 DAG size of output: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:58:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:58:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:58:50,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-25 18:58:50,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-25 18:58:50,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-25 18:58:50,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 4 remaining) [2022-11-25 18:58:50,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 4 remaining) [2022-11-25 18:58:50,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (18)] Forceful destruction successful, exit code 0 [2022-11-25 18:58:50,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:58:50,283 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:58:50,283 INFO L307 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE (2/4) [2022-11-25 18:58:50,285 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:58:50,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:58:50,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:58:50,291 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:58:50,301 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:58:50,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-25 18:58:50,302 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;@5a92d5d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:58:50,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-25 18:58:50,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (19)] Waiting until timeout for monitored process [2022-11-25 18:58:50,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:58:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:58:50,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1359234776, now seen corresponding path program 1 times [2022-11-25 18:58:50,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:58:50,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284986877] [2022-11-25 18:58:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:58:50,675 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 18:58:50,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:58:50,683 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:58:50,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (20)] Waiting until timeout for monitored process [2022-11-25 18:58:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:58:50,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:58:50,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:58:50,855 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 18:58:50,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:58:50,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:58:50,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284986877] [2022-11-25 18:58:50,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284986877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:58:50,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:58:50,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:58:50,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93123245] [2022-11-25 18:58:50,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:58:50,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:58:50,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:58:50,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:58:50,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:58:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:50,858 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:58:50,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 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 18:58:50,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:51,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (20)] Forceful destruction successful, exit code 0 [2022-11-25 18:58:51,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:58:51,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:58:51,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:58:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1189683807, now seen corresponding path program 1 times [2022-11-25 18:58:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:58:51,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858544885] [2022-11-25 18:58:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:58:51,247 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 18:58:51,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:58:51,249 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:58:51,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (21)] Waiting until timeout for monitored process [2022-11-25 18:58:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:58:51,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:58:51,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:58:54,892 INFO L321 Elim1Store]: treesize reduction 332, result has 0.3 percent of original size [2022-11-25 18:58:54,892 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 174 treesize of output 34 [2022-11-25 18:58:55,609 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 18:58:55,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:58:55,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:58:55,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858544885] [2022-11-25 18:58:55,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858544885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:58:55,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:58:55,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-25 18:58:55,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349606463] [2022-11-25 18:58:55,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:58:55,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 18:58:55,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:58:55,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 18:58:55,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:58:55,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:55,613 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:58:55,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.0) internal successors, (153), 17 states have internal predecessors, (153), 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 18:58:55,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:55,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:59,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:58:59,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (21)] Forceful destruction successful, exit code 0 [2022-11-25 18:59:00,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:00,139 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:59:00,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:59:00,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1229004280, now seen corresponding path program 1 times [2022-11-25 18:59:00,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:59:00,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952580197] [2022-11-25 18:59:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:59:00,140 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 18:59:00,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:59:00,141 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:00,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (22)] Waiting until timeout for monitored process [2022-11-25 18:59:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:59:00,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 18:59:00,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:59:00,433 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 18:59:00,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:59:00,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:59:00,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952580197] [2022-11-25 18:59:00,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952580197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:59:00,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:59:00,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:59:00,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656116123] [2022-11-25 18:59:00,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:59:00,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:59:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:59:00,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:59:00,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:59:00,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:00,437 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:59:00,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 68.5) internal successors, (137), 3 states have internal predecessors, (137), 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 18:59:00,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:00,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:59:00,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:59:02,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:02,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (22)] Ended with exit code 0 [2022-11-25 18:59:02,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:02,290 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:59:02,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:59:02,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1229004279, now seen corresponding path program 1 times [2022-11-25 18:59:02,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:59:02,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912708859] [2022-11-25 18:59:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:59:02,291 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 18:59:02,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:59:02,292 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:02,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (23)] Waiting until timeout for monitored process [2022-11-25 18:59:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:59:02,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:59:02,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:59:03,180 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 18:59:03,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:59:03,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:59:03,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912708859] [2022-11-25 18:59:03,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912708859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:59:03,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:59:03,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:59:03,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677975981] [2022-11-25 18:59:03,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:59:03,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:59:03,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:59:03,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:59:03,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:59:03,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:03,182 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:59:03,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 45.666666666666664) internal successors, (137), 4 states have internal predecessors, (137), 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 18:59:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:59:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:03,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:05,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:59:05,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:05,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:05,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (23)] Forceful destruction successful, exit code 0 [2022-11-25 18:59:05,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:05,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:59:05,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:59:05,368 INFO L85 PathProgramCache]: Analyzing trace with hash -103345312, now seen corresponding path program 1 times [2022-11-25 18:59:05,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:59:05,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330113780] [2022-11-25 18:59:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:59:05,368 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 18:59:05,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:59:05,369 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:05,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (24)] Waiting until timeout for monitored process [2022-11-25 18:59:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:59:05,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 18:59:05,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:59:05,622 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 18:59:05,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:59:05,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:59:05,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330113780] [2022-11-25 18:59:05,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330113780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:59:05,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:59:05,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:59:05,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570897088] [2022-11-25 18:59:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:59:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:59:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:59:05,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:59:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:59:05,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:05,625 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:59:05,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 63.0) internal successors, (126), 3 states have internal predecessors, (126), 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 18:59:05,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:05,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:59:05,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:05,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:05,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:06,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:59:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:06,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (24)] Forceful destruction successful, exit code 0 [2022-11-25 18:59:06,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:06,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:59:06,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:59:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash -103345311, now seen corresponding path program 1 times [2022-11-25 18:59:06,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:59:06,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336110944] [2022-11-25 18:59:06,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:59:06,215 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 18:59:06,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:59:06,216 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:06,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (25)] Waiting until timeout for monitored process [2022-11-25 18:59:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:59:06,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:59:06,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:59:07,011 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 18:59:07,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:59:07,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:59:07,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336110944] [2022-11-25 18:59:07,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336110944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:59:07,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:59:07,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:59:07,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654697634] [2022-11-25 18:59:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:59:07,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:59:07,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:59:07,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:59:07,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:59:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:07,016 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:59:07,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 42.0) internal successors, (126), 4 states have internal predecessors, (126), 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 18:59:07,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:07,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:59:07,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:07,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:07,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:07,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:59:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:08,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (25)] Forceful destruction successful, exit code 0 [2022-11-25 18:59:08,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:08,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:59:08,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:59:08,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1517615728, now seen corresponding path program 1 times [2022-11-25 18:59:08,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:59:08,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733292599] [2022-11-25 18:59:08,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:59:08,281 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 18:59:08,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:59:08,283 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:08,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (26)] Waiting until timeout for monitored process [2022-11-25 18:59:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:59:08,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:59:08,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:59:09,098 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:59:09,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2022-11-25 18:59:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:59:09,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:59:09,542 INFO L321 Elim1Store]: treesize reduction 210, result has 3.2 percent of original size [2022-11-25 18:59:09,543 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 91 treesize of output 28 [2022-11-25 18:59:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:59:10,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:59:10,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733292599] [2022-11-25 18:59:10,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733292599] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:59:10,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:59:10,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 18:59:10,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180876526] [2022-11-25 18:59:10,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:59:10,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:59:10,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:59:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:59:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:59:10,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:10,154 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:59:10,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 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 18:59:10,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:10,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:59:10,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:10,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:10,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:10,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:10,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:59:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:59:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:59:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:59:11,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:59:11,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (26)] Forceful destruction successful, exit code 0 [2022-11-25 18:59:12,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:12,096 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 18:59:12,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:59:12,097 INFO L85 PathProgramCache]: Analyzing trace with hash 539079479, now seen corresponding path program 1 times [2022-11-25 18:59:12,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:59:12,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114211904] [2022-11-25 18:59:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:59:12,097 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 18:59:12,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:59:12,098 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 18:59:12,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (27)] Waiting until timeout for monitored process [2022-11-25 18:59:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:59:12,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 18:59:12,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:59:14,703 INFO L321 Elim1Store]: treesize reduction 224, result has 32.7 percent of original size [2022-11-25 18:59:14,704 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 174 treesize of output 142 [2022-11-25 18:59:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:59:14,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:59:25,203 WARN L233 SmtUtils]: Spent 8.32s on a formula simplification. DAG size of input: 392 DAG size of output: 236 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 18:59:25,205 INFO L321 Elim1Store]: treesize reduction 665, result has 60.8 percent of original size [2022-11-25 18:59:25,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 177 treesize of output 1068 [2022-11-25 19:01:04,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 19:01:04,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 19:01:04,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114211904] [2022-11-25 19:01:04,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114211904] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 19:01:04,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 19:01:04,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-25 19:01:04,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842119888] [2022-11-25 19:01:04,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 19:01:04,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 19:01:04,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 19:01:04,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 19:01:04,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 19:01:04,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 19:01:04,895 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 19:01:04,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.857142857142858) internal successors, (278), 14 states have internal predecessors, (278), 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 19:01:04,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 19:01:04,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-25 19:01:04,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 19:01:04,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 19:01:04,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 19:01:04,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 19:01:04,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 19:01:04,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 19:01:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 19:01:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 19:01:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 19:01:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 19:01:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 19:01:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 19:01:07,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 19:01:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 19:01:07,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (27)] Forceful destruction successful, exit code 0 [2022-11-25 19:01:07,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 19:01:07,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-25 19:01:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 19:01:07,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1331921841, now seen corresponding path program 1 times [2022-11-25 19:01:07,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 19:01:07,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013161459] [2022-11-25 19:01:07,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 19:01:07,881 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 19:01:07,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 19:01:07,882 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 19:01:07,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132b084a-b841-4b23-b188-2b7caf3f6e53/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 (28)] Waiting until timeout for monitored process [2022-11-25 19:01:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 19:01:08,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-25 19:01:08,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 19:01:18,079 INFO L321 Elim1Store]: treesize reduction 1084, result has 18.9 percent of original size [2022-11-25 19:01:18,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 351 treesize of output 319 [2022-11-25 19:01:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 19:01:19,239 INFO L328 TraceCheckSpWp]: Computing backward predicates...