./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/unroll-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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_28fac88a-39b4-4820-9799-e8f861b22264/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 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf --- 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 18:43:41,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:43:41,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:43:41,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:43:41,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:43:41,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:43:41,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:43:41,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:43:41,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:43:41,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:43:41,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:43:41,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:43:41,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:43:41,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:43:41,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:43:41,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:43:41,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:43:41,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:43:41,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:43:41,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:43:41,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:43:41,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:43:41,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:43:41,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:43:41,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:43:41,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:43:41,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:43:41,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:43:41,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:43:41,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:43:41,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:43:41,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:43:41,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:43:41,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:43:41,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:43:41,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:43:41,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:43:41,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:43:41,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:43:41,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:43:41,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:43:41,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-25 18:43:41,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:43:41,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:43:41,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:43:41,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:43:41,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:43:41,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:43:41,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:43:41,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:43:41,700 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:43:41,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:43:41,702 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:43:41,702 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:43:41,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:43:41,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:43:41,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:43:41,703 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:43:41,704 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:43:41,704 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:43:41,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:43:41,704 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:43:41,705 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:43:41,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:43:41,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:43:41,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:43:41,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:43:41,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:43:41,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:43:41,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:43:41,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:43:41,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:43:41,708 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:43:41,708 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:43:41,709 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:43:41,709 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:43:41,709 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:43:41,710 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_28fac88a-39b4-4820-9799-e8f861b22264/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf [2022-11-25 18:43:42,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:43:42,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:43:42,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:43:42,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:43:42,105 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:43:42,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/weaver/unroll-2.wvr.c [2022-11-25 18:43:45,373 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:43:45,653 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:43:45,653 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/sv-benchmarks/c/weaver/unroll-2.wvr.c [2022-11-25 18:43:45,662 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data/f1394fc07/210aad4c55674d80aa2dee1da7d05d3a/FLAG08df8ff11 [2022-11-25 18:43:45,688 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data/f1394fc07/210aad4c55674d80aa2dee1da7d05d3a [2022-11-25 18:43:45,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:43:45,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:43:45,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:43:45,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:43:45,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:43:45,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:45" (1/1) ... [2022-11-25 18:43:45,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1773462e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:45, skipping insertion in model container [2022-11-25 18:43:45,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:45" (1/1) ... [2022-11-25 18:43:45,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:43:45,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:43:46,041 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_28fac88a-39b4-4820-9799-e8f861b22264/sv-benchmarks/c/weaver/unroll-2.wvr.c[2428,2441] [2022-11-25 18:43:46,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:43:46,101 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 18:43:46,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c9b4ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:46, skipping insertion in model container [2022-11-25 18:43:46,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:43:46,103 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-25 18:43:46,106 INFO L158 Benchmark]: Toolchain (without parser) took 407.88ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 52.6MB in the beginning and 149.6MB in the end (delta: -97.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-25 18:43:46,112 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:43:46,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.33ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 52.4MB in the beginning and 149.6MB in the end (delta: -97.2MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-25 18:43:46,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.33ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 52.4MB in the beginning and 149.6MB in the end (delta: -97.2MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 97]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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_28fac88a-39b4-4820-9799-e8f861b22264/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 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf --- 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 18:43:48,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:43:48,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:43:48,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:43:48,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:43:48,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:43:48,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:43:48,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:43:48,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:43:48,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:43:48,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:43:48,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:43:48,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:43:48,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:43:48,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:43:48,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:43:48,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:43:48,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:43:48,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:43:48,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:43:48,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:43:48,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:43:48,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:43:48,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:43:48,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:43:48,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:43:48,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:43:48,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:43:48,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:43:48,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:43:48,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:43:48,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:43:48,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:43:48,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:43:48,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:43:48,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:43:48,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:43:48,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:43:48,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:43:48,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:43:48,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:43:48,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2022-11-25 18:43:48,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:43:48,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:43:48,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:43:48,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:43:48,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:43:48,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:43:48,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:43:48,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:43:48,725 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:43:48,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:43:48,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:43:48,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:43:48,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:43:48,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:43:48,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:43:48,728 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:43:48,728 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:43:48,728 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:43:48,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:43:48,729 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:43:48,729 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:43:48,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:43:48,730 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:43:48,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:43:48,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:43:48,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:43:48,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:43:48,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:43:48,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:43:48,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:43:48,733 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:43:48,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:43:48,733 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:43:48,734 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:43:48,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:43:48,734 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:43:48,735 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:43:48,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:43:48,735 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_28fac88a-39b4-4820-9799-e8f861b22264/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf [2022-11-25 18:43:49,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:43:49,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:43:49,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:43:49,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:43:49,219 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:43:49,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/weaver/unroll-2.wvr.c [2022-11-25 18:43:52,675 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:43:52,881 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:43:52,881 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/sv-benchmarks/c/weaver/unroll-2.wvr.c [2022-11-25 18:43:52,889 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data/f64ddbb70/3163f08982c646db8091c688ef86f770/FLAG20a4d9be1 [2022-11-25 18:43:52,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/data/f64ddbb70/3163f08982c646db8091c688ef86f770 [2022-11-25 18:43:52,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:43:52,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:43:52,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:43:52,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:43:52,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:43:52,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:52" (1/1) ... [2022-11-25 18:43:52,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de6cdeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:52, skipping insertion in model container [2022-11-25 18:43:52,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:52" (1/1) ... [2022-11-25 18:43:52,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:43:52,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:43:53,262 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_28fac88a-39b4-4820-9799-e8f861b22264/sv-benchmarks/c/weaver/unroll-2.wvr.c[2428,2441] [2022-11-25 18:43:53,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:43:53,310 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 18:43:53,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:43:53,348 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_28fac88a-39b4-4820-9799-e8f861b22264/sv-benchmarks/c/weaver/unroll-2.wvr.c[2428,2441] [2022-11-25 18:43:53,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:43:53,364 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:43:53,412 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_28fac88a-39b4-4820-9799-e8f861b22264/sv-benchmarks/c/weaver/unroll-2.wvr.c[2428,2441] [2022-11-25 18:43:53,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:43:53,442 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:43:53,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53 WrapperNode [2022-11-25 18:43:53,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:43:53,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:43:53,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:43:53,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:43:53,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,524 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 132 [2022-11-25 18:43:53,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:43:53,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:43:53,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:43:53,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:43:53,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:43:53,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:43:53,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:43:53,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:43:53,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (1/1) ... [2022-11-25 18:43:53,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:43:53,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:43:53,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:43:53,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:43:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:43:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:43:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:43:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 18:43:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:43:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:43:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:43:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:43:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:43:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:43:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:43:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:43:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 18:43:53,704 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 18:43:53,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:43:53,871 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:43:54,521 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:43:54,530 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:43:54,530 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 18:43:54,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:43:54 BoogieIcfgContainer [2022-11-25 18:43:54,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:43:54,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:43:54,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:43:54,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:43:54,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:43:52" (1/3) ... [2022-11-25 18:43:54,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a75490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:43:54, skipping insertion in model container [2022-11-25 18:43:54,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:53" (2/3) ... [2022-11-25 18:43:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a75490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:43:54, skipping insertion in model container [2022-11-25 18:43:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:43:54" (3/3) ... [2022-11-25 18:43:54,540 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2022-11-25 18:43:54,557 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:43:54,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 18:43:54,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:43:54,674 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:43:54,728 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:43:54,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:43:54,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:43:54,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:43:54,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-25 18:43:54,794 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:43:54,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2022-11-25 18:43:54,814 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;@50aa5cdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:43:54,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 18:43:55,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:43:55,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash -121517183, now seen corresponding path program 1 times [2022-11-25 18:43:55,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:43:55,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164917554] [2022-11-25 18:43:55,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:55,340 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 18:43:55,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:43:55,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:55,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:43:55,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:43:55,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:43:55,563 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 18:43:55,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:43:55,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:43:55,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164917554] [2022-11-25 18:43:55,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164917554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:43:55,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:43:55,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:43:55,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133972172] [2022-11-25 18:43:55,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:43:55,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:43:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:43:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:43:55,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:43:55,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:55,606 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:43:55,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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 18:43:55,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:55,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:55,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:55,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:43:55,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1793074854, now seen corresponding path program 1 times [2022-11-25 18:43:55,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:43:55,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402851742] [2022-11-25 18:43:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:55,865 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 18:43:55,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:43:55,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:55,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:43:56,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:43:56,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:43:56,124 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 18:43:56,330 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 18:43:56,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:43:56,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:43:56,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402851742] [2022-11-25 18:43:56,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402851742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:43:56,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:43:56,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:43:56,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920150452] [2022-11-25 18:43:56,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:43:56,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:43:56,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:43:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:43:56,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:43:56,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:56,340 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:43:56,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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 18:43:56,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:56,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:43:56,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:56,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:56,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:43:56,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1793074855, now seen corresponding path program 1 times [2022-11-25 18:43:56,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:43:56,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235732129] [2022-11-25 18:43:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:56,880 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 18:43:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:43:56,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:56,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:43:57,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:43:57,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:43:57,469 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 18:43:57,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:43:57,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:43:57,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235732129] [2022-11-25 18:43:57,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235732129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:43:57,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:43:57,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:43:57,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723431768] [2022-11-25 18:43:57,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:43:57,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:43:57,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:43:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:43:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:43:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:57,483 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:43:57,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 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 18:43:57,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:43:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:43:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:43:58,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:43:58,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:58,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:58,498 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-25 18:43:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:43:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash 640967264, now seen corresponding path program 1 times [2022-11-25 18:43:58,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:43:58,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069438465] [2022-11-25 18:43:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:43:58,500 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 18:43:58,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:43:58,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:58,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:43:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:43:58,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-25 18:43:58,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:43:59,151 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 18:44:01,083 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 18:44:01,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:44:10,924 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 18:44:10,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:44:10,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069438465] [2022-11-25 18:44:10,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069438465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:44:10,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:44:10,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 38 [2022-11-25 18:44:10,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439985241] [2022-11-25 18:44:10,926 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:44:10,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-25 18:44:10,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:44:10,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-25 18:44:10,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 18:44:10,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:44:10,938 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:44:10,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.605263157894737) internal successors, (175), 39 states have internal predecessors, (175), 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 18:44:10,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:44:10,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:44:10,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:44:10,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:44:16,783 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:44:58,260 WARN L233 SmtUtils]: Spent 19.29s on a formula simplification. DAG size of input: 72 DAG size of output: 54 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:45:22,611 WARN L233 SmtUtils]: Spent 22.59s on a formula simplification. DAG size of input: 83 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:45:51,021 WARN L233 SmtUtils]: Spent 25.86s on a formula simplification. DAG size of input: 94 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:46:14,321 WARN L233 SmtUtils]: Spent 21.56s on a formula simplification. DAG size of input: 83 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:46:39,392 WARN L233 SmtUtils]: Spent 23.13s on a formula simplification. DAG size of input: 74 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:46:50,668 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 63 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:47:05,719 WARN L233 SmtUtils]: Spent 8.53s on a formula simplification. DAG size of input: 67 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:47:17,931 WARN L233 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 70 DAG size of output: 68 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:47:31,345 WARN L233 SmtUtils]: Spent 8.98s on a formula simplification. DAG size of input: 63 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:47:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:47:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-25 18:47:37,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-25 18:47:37,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-25 18:47:37,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 4 remaining) [2022-11-25 18:47:37,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 4 remaining) [2022-11-25 18:47:37,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,359 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:47:37,361 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (1/3) [2022-11-25 18:47:37,367 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:47:37,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:47:37,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:47:37,369 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:47:37,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2022-11-25 18:47:37,382 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:47:37,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2022-11-25 18:47:37,383 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;@50aa5cdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:47:37,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 18:47:37,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2022-11-25 18:47:37,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:37,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1211740020, now seen corresponding path program 1 times [2022-11-25 18:47:37,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:37,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002949258] [2022-11-25 18:47:37,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:37,496 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 18:47:37,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:37,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:37,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:47:37,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:37,604 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 18:47:37,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:37,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:37,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002949258] [2022-11-25 18:47:37,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002949258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:37,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:37,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:47:37,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971601015] [2022-11-25 18:47:37,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:37,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:47:37,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:37,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:47:37,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:47:37,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:37,614 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:37,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 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 18:47:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:37,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2022-11-25 18:47:37,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:37,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1583407672, now seen corresponding path program 1 times [2022-11-25 18:47:37,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:37,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687739663] [2022-11-25 18:47:37,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:37,851 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 18:47:37,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:37,852 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:37,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:47:37,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:37,949 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 18:47:38,214 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 18:47:38,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:38,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:38,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687739663] [2022-11-25 18:47:38,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687739663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:38,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:38,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:47:38,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113007357] [2022-11-25 18:47:38,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:38,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:47:38,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:38,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:47:38,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:47:38,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:38,219 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:38,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 7 states have internal predecessors, (76), 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 18:47:38,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:38,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:38,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:47:38,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:38,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2022-11-25 18:47:38,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:38,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1583407673, now seen corresponding path program 1 times [2022-11-25 18:47:38,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:38,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122705985] [2022-11-25 18:47:38,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:38,879 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 18:47:38,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:38,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:38,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 18:47:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:38,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 18:47:38,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:40,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:47:41,563 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 18:47:41,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:41,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:41,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122705985] [2022-11-25 18:47:41,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122705985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:41,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:41,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 18:47:41,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928475019] [2022-11-25 18:47:41,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:41,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 18:47:41,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:41,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 18:47:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-25 18:47:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:41,567 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:41,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 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 18:47:41,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:41,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:41,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:52,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:47:52,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:52,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:52,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2022-11-25 18:47:52,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash -946567048, now seen corresponding path program 1 times [2022-11-25 18:47:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:52,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845405647] [2022-11-25 18:47:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:52,297 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 18:47:52,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:52,298 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:52,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:52,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:47:52,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 18:47:53,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:47:53,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:47:53,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845405647] [2022-11-25 18:47:53,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845405647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:47:53,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:47:53,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:47:53,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129119594] [2022-11-25 18:47:53,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:47:53,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:47:53,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:47:53,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:47:53,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:47:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:53,273 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:53,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 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 18:47:53,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:53,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:53,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:47:53,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:47:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:47:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:47:55,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:55,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:55,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2022-11-25 18:47:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:55,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1058413855, now seen corresponding path program 1 times [2022-11-25 18:47:55,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:47:55,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606194121] [2022-11-25 18:47:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:55,533 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 18:47:55,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:47:55,536 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:55,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:47:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:55,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-25 18:47:55,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:56,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 18:47:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:47:59,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:48:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:48:13,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:48:13,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606194121] [2022-11-25 18:48:13,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606194121] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:48:13,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:48:13,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 38 [2022-11-25 18:48:13,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011382666] [2022-11-25 18:48:13,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:48:13,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-25 18:48:13,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:48:13,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-25 18:48:13,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 18:48:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:13,037 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:48:13,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.2368421052631575) internal successors, (161), 39 states have internal predecessors, (161), 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 18:48:13,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:13,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:48:13,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:48:13,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:48:13,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:23,475 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:48:24,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:48:34,864 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:49:14,612 WARN L233 SmtUtils]: Spent 20.27s on a formula simplification. DAG size of input: 72 DAG size of output: 54 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:49:40,518 WARN L233 SmtUtils]: Spent 23.98s on a formula simplification. DAG size of input: 83 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:10,351 WARN L233 SmtUtils]: Spent 26.18s on a formula simplification. DAG size of input: 94 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:50:35,113 WARN L233 SmtUtils]: Spent 22.90s on a formula simplification. DAG size of input: 83 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:51:00,144 WARN L233 SmtUtils]: Spent 22.93s on a formula simplification. DAG size of input: 74 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:51:09,729 WARN L233 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 63 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:51:24,428 WARN L233 SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 67 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:51:36,842 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 70 DAG size of output: 68 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:51:38,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:51:50,773 WARN L233 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 63 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:51:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:51:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:51:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:51:52,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-25 18:51:52,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 2 remaining) [2022-11-25 18:51:52,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 2 remaining) [2022-11-25 18:51:52,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:52,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:52,345 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 18:51:52,346 INFO L307 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE (2/3) [2022-11-25 18:51:52,351 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:51:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:51:52,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:51:52,353 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:51:52,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2022-11-25 18:51:52,365 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:51:52,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-25 18:51:52,366 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;@50aa5cdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:51:52,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-25 18:51:52,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:51:52,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:51:52,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1218047678, now seen corresponding path program 1 times [2022-11-25 18:51:52,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:51:52,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957591126] [2022-11-25 18:51:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:51:52,497 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 18:51:52,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:51:52,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:52,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 (14)] Waiting until timeout for monitored process [2022-11-25 18:51:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:51:52,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:51:52,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:51:52,663 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 18:51:52,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:51:52,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:52,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957591126] [2022-11-25 18:51:52,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957591126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:51:52,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:51:52,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:51:52,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439408798] [2022-11-25 18:51:52,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:51:52,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:51:52,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:52,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:51:52,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:51:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:52,666 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:52,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 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 18:51:52,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:52,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 (14)] Ended with exit code 0 [2022-11-25 18:51:52,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:52,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:51:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:51:52,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1116251283, now seen corresponding path program 1 times [2022-11-25 18:51:52,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:51:52,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514679398] [2022-11-25 18:51:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:51:52,914 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 18:51:52,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:51:52,916 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:52,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:51:53,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:51:53,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:51:54,025 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 18:51:54,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:51:54,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:54,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514679398] [2022-11-25 18:51:54,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514679398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:51:54,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:51:54,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:51:54,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336646658] [2022-11-25 18:51:54,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:51:54,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:51:54,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:54,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:51:54,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:51:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:54,029 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:54,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 18:51:54,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:54,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:54,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:54,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:54,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:54,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:51:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:51:54,696 INFO L85 PathProgramCache]: Analyzing trace with hash -431687093, now seen corresponding path program 1 times [2022-11-25 18:51:54,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:51:54,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665473151] [2022-11-25 18:51:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:51:54,697 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 18:51:54,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:51:54,699 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:54,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:51:54,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:51:54,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:51:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:51:54,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:51:54,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:54,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665473151] [2022-11-25 18:51:54,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665473151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:51:54,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:51:54,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:51:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794889980] [2022-11-25 18:51:54,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:51:54,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:51:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:54,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:51:54,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:51:54,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:54,963 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:54,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 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 18:51:54,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:54,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:54,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:55,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:51:55,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:51:55,270 INFO L85 PathProgramCache]: Analyzing trace with hash -621604793, now seen corresponding path program 1 times [2022-11-25 18:51:55,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:51:55,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297381331] [2022-11-25 18:51:55,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:51:55,271 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 18:51:55,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:51:55,272 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:51:55,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 18:51:55,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:51:55,466 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 18:51:55,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:51:55,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:55,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297381331] [2022-11-25 18:51:55,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297381331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:51:55,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:51:55,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:51:55,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331496941] [2022-11-25 18:51:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:51:55,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:51:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:55,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:51:55,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:51:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:55,471 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:55,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 41.5) internal successors, (83), 3 states have internal predecessors, (83), 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 18:51:55,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:55,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:55,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:55,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:55,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:55,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:55,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:51:55,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,834 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:51:55,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:51:55,835 INFO L85 PathProgramCache]: Analyzing trace with hash -621604792, now seen corresponding path program 1 times [2022-11-25 18:51:55,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:51:55,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140829552] [2022-11-25 18:51:55,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:51:55,836 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 18:51:55,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:51:55,837 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:51:55,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:51:55,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:51:56,521 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 18:51:56,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:51:56,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:56,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140829552] [2022-11-25 18:51:56,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140829552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:51:56,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:51:56,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:51:56,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511990982] [2022-11-25 18:51:56,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:51:56,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:51:56,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:56,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:51:56,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:51:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:56,525 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:56,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.666666666666668) internal successors, (83), 4 states have internal predecessors, (83), 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 18:51:56,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:56,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:56,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:56,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:51:56,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:51:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:51:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:51:56,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:57,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:57,066 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:51:57,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:51:57,066 INFO L85 PathProgramCache]: Analyzing trace with hash 778046544, now seen corresponding path program 1 times [2022-11-25 18:51:57,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:51:57,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83220772] [2022-11-25 18:51:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:51:57,067 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 18:51:57,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:51:57,069 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:57,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 (19)] Waiting until timeout for monitored process [2022-11-25 18:51:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:51:57,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:51:57,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:51:57,567 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 18:51:57,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:51:57,907 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 18:51:57,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:57,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83220772] [2022-11-25 18:51:57,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83220772] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:51:57,908 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:51:57,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 18:51:57,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259472228] [2022-11-25 18:51:57,909 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:51:57,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:51:57,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:57,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:51:57,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:51:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:57,912 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:57,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 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 18:51:57,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:57,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:51:57,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:57,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:51:57,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:51:57,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:51:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:51:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:51:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:58,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 (19)] Forceful destruction successful, exit code 0 [2022-11-25 18:51:58,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:58,772 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:51:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:51:58,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1959124915, now seen corresponding path program 2 times [2022-11-25 18:51:58,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:51:58,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517978495] [2022-11-25 18:51:58,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:51:58,774 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 18:51:58,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:51:58,778 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:58,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:51:58,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:51:58,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:51:58,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:51:58,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:51:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 18:51:59,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:51:59,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:51:59,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517978495] [2022-11-25 18:51:59,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517978495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:51:59,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:51:59,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:51:59,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23138098] [2022-11-25 18:51:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:51:59,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:51:59,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:51:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:51:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:51:59,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:59,829 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:51:59,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 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 18:51:59,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:51:59,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:51:59,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:51:59,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:51:59,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:51:59,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:51:59,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:52:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:52:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:52:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:52:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:52:01,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:52:01,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:02,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:02,107 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:52:02,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash -293618708, now seen corresponding path program 1 times [2022-11-25 18:52:02,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:52:02,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175604143] [2022-11-25 18:52:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:02,109 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 18:52:02,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:52:02,111 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:02,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:52:02,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:52:02,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:52:03,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:52:03,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:52:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 18:52:03,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:52:03,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175604143] [2022-11-25 18:52:03,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175604143] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 18:52:03,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:52:03,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-11-25 18:52:03,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074399770] [2022-11-25 18:52:03,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:52:03,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:52:03,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:52:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:52:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:52:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:03,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:52:03,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 18:52:03,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:03,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:52:03,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:52:03,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:52:03,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:52:03,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:52:03,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:52:03,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:52:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:52:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:52:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:52:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:52:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:52:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:52:03,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:04,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:04,038 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:52:04,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:04,038 INFO L85 PathProgramCache]: Analyzing trace with hash -114054894, now seen corresponding path program 1 times [2022-11-25 18:52:04,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:52:04,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769563005] [2022-11-25 18:52:04,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:04,039 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 18:52:04,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:52:04,041 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:04,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:52:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:52:04,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:52:04,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:52:07,752 INFO L321 Elim1Store]: treesize reduction 162, result has 19.4 percent of original size [2022-11-25 18:52:07,753 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 12 new quantified variables, introduced 28 case distinctions, treesize of input 313 treesize of output 112 [2022-11-25 18:52:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:52:10,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:52:30,220 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 471 DAG size of output: 108 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 18:52:30,222 INFO L321 Elim1Store]: treesize reduction 1042, result has 17.1 percent of original size [2022-11-25 18:52:30,222 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 24 new quantified variables, introduced 120 case distinctions, treesize of input 413 treesize of output 348 [2022-11-25 18:55:27,319 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 4590 DAG size of output: 6 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:55:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:55:28,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:55:28,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769563005] [2022-11-25 18:55:28,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769563005] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:55:28,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:55:28,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2022-11-25 18:55:28,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110149040] [2022-11-25 18:55:28,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:55:28,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 18:55:28,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:55:28,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 18:55:28,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=486, Unknown=3, NotChecked=0, Total=552 [2022-11-25 18:55:28,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:28,203 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:55:28,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.166666666666666) internal successors, (292), 24 states have internal predecessors, (292), 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 18:55:28,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:28,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:55:28,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:55:28,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:55:28,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:28,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:55:28,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:55:28,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:28,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:37,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:55:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:55:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:55:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:55:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:55:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:55:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:55:37,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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)] Forceful destruction successful, exit code 0 [2022-11-25 18:55:38,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:55:38,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:55:38,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:55:38,097 INFO L85 PathProgramCache]: Analyzing trace with hash -971590996, now seen corresponding path program 2 times [2022-11-25 18:55:38,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:55:38,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56716844] [2022-11-25 18:55:38,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:55:38,098 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 18:55:38,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:55:38,099 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:55:38,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:55:38,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:55:38,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:55:38,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 18:55:38,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:55:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:55:39,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:55:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:55:44,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:55:44,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56716844] [2022-11-25 18:55:44,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56716844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:55:44,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:55:44,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 29 [2022-11-25 18:55:44,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481135809] [2022-11-25 18:55:44,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:55:44,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 18:55:44,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:55:44,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 18:55:44,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-11-25 18:55:44,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:44,670 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:55:44,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.068965517241379) internal successors, (263), 29 states have internal predecessors, (263), 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 18:55:44,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:44,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:55:44,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:55:44,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:55:44,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:44,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:55:44,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:55:44,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:44,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:55:44,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:55,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:55:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:55:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-25 18:55:55,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:55:55,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:55:55,599 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:55:55,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:55:55,600 INFO L85 PathProgramCache]: Analyzing trace with hash -361390649, now seen corresponding path program 3 times [2022-11-25 18:55:55,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:55:55,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99734802] [2022-11-25 18:55:55,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:55:55,600 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 18:55:55,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:55:55,602 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:55:55,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:55:55,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 18:55:55,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:55:55,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 18:55:55,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:56:03,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:56:03,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:56:03,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:56:03,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:56:03,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:56:03,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:56:03,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:56:03,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:56:03,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:56:03,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:56:03,653 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:56:03,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 79 treesize of output 31 [2022-11-25 18:56:04,869 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 18:56:04,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:56:12,709 INFO L321 Elim1Store]: treesize reduction 210, result has 3.2 percent of original size [2022-11-25 18:56:12,709 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 85 treesize of output 23 [2022-11-25 18:56:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 18:56:22,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:56:22,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99734802] [2022-11-25 18:56:22,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99734802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:56:22,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:56:22,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 23] total 50 [2022-11-25 18:56:22,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801544705] [2022-11-25 18:56:22,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:56:22,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-25 18:56:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:56:22,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-25 18:56:22,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=2149, Unknown=2, NotChecked=0, Total=2450 [2022-11-25 18:56:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:22,923 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:56:22,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.44) internal successors, (272), 50 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:56:22,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:22,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:56:22,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:56:22,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:56:22,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:22,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:56:22,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:56:22,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:22,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:56:22,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-11-25 18:56:22,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:56:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:56:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:56:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:56:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:56:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:56:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:56:58,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-25 18:56:58,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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)] Ended with exit code 0 [2022-11-25 18:56:58,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:56:58,944 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:56:58,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:56:58,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1163079089, now seen corresponding path program 1 times [2022-11-25 18:56:58,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:56:58,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334739503] [2022-11-25 18:56:58,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:56:58,945 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 18:56:58,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:56:58,946 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:56:58,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:56:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:56:59,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 18:56:59,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:56:59,176 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 18:56:59,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:56:59,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:56:59,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334739503] [2022-11-25 18:56:59,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334739503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:56:59,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:56:59,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:56:59,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926853561] [2022-11-25 18:56:59,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:56:59,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:56:59,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:56:59,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:56:59,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:56:59,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:59,180 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:56:59,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 41.0) internal successors, (82), 3 states have internal predecessors, (82), 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 18:56:59,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:59,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:56:59,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:56:59,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:56:59,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:59,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:56:59,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:56:59,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:59,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:56:59,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:56:59,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-25 18:56:59,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:56:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:56:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:56:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:56:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:56:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:56:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:56:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:56:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-25 18:56:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:56:59,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:56:59,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:56:59,677 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-25 18:56:59,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:56:59,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1163079088, now seen corresponding path program 1 times [2022-11-25 18:56:59,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:56:59,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736256513] [2022-11-25 18:56:59,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:56:59,678 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 18:56:59,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/bin/ugemcutter-syNpU3ikLH/mathsat [2022-11-25 18:56:59,679 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:56:59,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28fac88a-39b4-4820-9799-e8f861b22264/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 18:56:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:56:59,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:56:59,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:57:00,385 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 18:57:00,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:57:00,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:57:00,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736256513] [2022-11-25 18:57:00,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736256513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:57:00,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:57:00,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:57:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995297091] [2022-11-25 18:57:00,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:57:00,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:57:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:57:00,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:57:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:57:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:00,395 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:57:00,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 4 states have internal predecessors, (82), 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 18:57:00,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:00,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:57:00,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:57:00,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:57:00,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:57:00,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:57:00,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:57:00,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:57:00,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:57:00,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-25 18:57:00,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-25 18:57:00,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:57:00,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:03,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:57:06,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]