./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- 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-b5237d8 [2022-11-22 01:52:44,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:52:44,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:52:44,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:52:44,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:52:44,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:52:44,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:52:44,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:52:44,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:52:44,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:52:44,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:52:44,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:52:44,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:52:44,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:52:44,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:52:44,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:52:44,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:52:44,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:52:44,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:52:44,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:52:44,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:52:44,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:52:44,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:52:44,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:52:44,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:52:44,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:52:44,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:52:44,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:52:44,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:52:44,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:52:44,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:52:44,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:52:44,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:52:44,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:52:44,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:52:44,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:52:44,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:52:44,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:52:44,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:52:44,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:52:44,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:52:44,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:52:44,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:52:44,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:52:44,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:52:44,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:52:44,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:52:44,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:52:44,777 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:52:44,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:52:44,777 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:52:44,777 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:52:44,779 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:52:44,779 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:52:44,779 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:52:44,780 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:52:44,780 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:52:44,780 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:52:44,780 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:52:44,781 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:52:44,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:52:44,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:52:44,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:52:44,782 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:52:44,782 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:52:44,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:52:44,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:52:44,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:52:44,784 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:52:44,784 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:52:44,784 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:52:44,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:52:44,786 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:52:44,786 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:52:44,786 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:52:44,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:52:44,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:52:44,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:52:44,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:52:44,787 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:52:44,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:52:44,788 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:52:44,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:52:44,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:52:44,789 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-22 01:52:45,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:52:45,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:52:45,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:52:45,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:52:45,138 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:52:45,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-22 01:52:48,310 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:52:48,672 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:52:48,672 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-22 01:52:48,707 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data/01991dc22/319bb43674114df3b03f7d47527ceb98/FLAGaa59ec790 [2022-11-22 01:52:48,725 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data/01991dc22/319bb43674114df3b03f7d47527ceb98 [2022-11-22 01:52:48,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:52:48,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:52:48,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:48,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:52:48,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:52:48,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:48" (1/1) ... [2022-11-22 01:52:48,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228f5763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:48, skipping insertion in model container [2022-11-22 01:52:48,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:48" (1/1) ... [2022-11-22 01:52:48,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:52:48,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:52:49,032 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:52:49,653 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-22 01:52:49,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:49,751 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) [2022-11-22 01:52:49,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6784d097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:49, skipping insertion in model container [2022-11-22 01:52:49,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:49,753 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-22 01:52:49,755 INFO L158 Benchmark]: Toolchain (without parser) took 1021.47ms. Allocated memory is still 172.0MB. Free memory was 125.2MB in the beginning and 106.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 01:52:49,755 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:52:49,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1014.67ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 106.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 01:52:49,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1014.67ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 106.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1691]: 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- 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-b5237d8 [2022-11-22 01:52:52,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:52:52,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:52:52,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:52:52,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:52:52,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:52:52,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:52:52,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:52:52,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:52:52,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:52:52,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:52:52,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:52:52,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:52:52,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:52:52,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:52:52,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:52:52,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:52:52,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:52:52,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:52:52,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:52:52,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:52:52,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:52:52,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:52:52,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:52:52,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:52:52,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:52:52,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:52:52,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:52:52,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:52:52,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:52:52,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:52:52,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:52:52,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:52:52,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:52:52,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:52:52,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:52:52,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:52:52,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:52:52,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:52:52,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:52:52,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:52:52,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-22 01:52:52,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:52:52,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:52:52,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:52:52,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:52:52,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:52:52,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:52:52,270 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:52:52,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:52:52,270 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:52:52,271 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:52:52,272 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:52:52,272 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:52:52,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:52:52,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:52:52,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:52:52,274 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:52:52,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:52:52,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:52:52,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:52:52,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:52:52,276 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:52:52,276 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:52:52,276 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:52:52,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:52:52,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:52:52,277 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:52:52,277 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:52:52,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:52:52,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:52:52,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:52:52,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:52:52,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:52:52,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:52:52,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:52:52,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:52:52,280 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:52:52,281 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:52:52,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:52:52,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:52:52,281 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-22 01:52:52,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:52:52,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:52:52,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:52:52,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:52:52,730 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:52:52,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-22 01:52:55,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:52:56,172 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:52:56,172 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-22 01:52:56,198 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data/3247749c4/eae9bf45a8c04bbe84c8b4248c2c3421/FLAG52516d7d2 [2022-11-22 01:52:56,212 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/data/3247749c4/eae9bf45a8c04bbe84c8b4248c2c3421 [2022-11-22 01:52:56,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:52:56,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:52:56,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:56,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:52:56,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:52:56,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:56" (1/1) ... [2022-11-22 01:52:56,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a40486e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:56, skipping insertion in model container [2022-11-22 01:52:56,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:56" (1/1) ... [2022-11-22 01:52:56,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:52:56,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:52:56,489 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:52:57,237 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-22 01:52:57,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:57,302 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-22 01:52:57,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:52:57,324 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:52:57,374 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-22 01:52:57,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:57,422 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:52:57,437 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:52:57,521 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_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-22 01:52:57,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:57,711 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:52:57,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57 WrapperNode [2022-11-22 01:52:57,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:57,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:52:57,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:52:57,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:52:57,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,846 INFO L138 Inliner]: procedures = 473, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 141 [2022-11-22 01:52:57,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:52:57,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:52:57,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:52:57,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:52:57,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,939 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:52:57,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:52:57,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:52:57,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:52:57,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (1/1) ... [2022-11-22 01:52:57,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:52:57,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:52:57,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:52:58,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:52:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 01:52:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:52:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:52:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:52:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 01:52:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:52:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:52:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:52:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:52:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:52:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:52:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-22 01:52:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-22 01:52:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:52:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:52:58,043 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:52:58,558 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:52:58,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:52:59,213 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:52:59,286 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:52:59,287 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:52:59,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:52:59 BoogieIcfgContainer [2022-11-22 01:52:59,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:52:59,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:52:59,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:52:59,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:52:59,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:52:56" (1/3) ... [2022-11-22 01:52:59,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8e4a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:52:59, skipping insertion in model container [2022-11-22 01:52:59,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:57" (2/3) ... [2022-11-22 01:52:59,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8e4a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:52:59, skipping insertion in model container [2022-11-22 01:52:59,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:52:59" (3/3) ... [2022-11-22 01:52:59,300 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-11-22 01:52:59,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:52:59,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2022-11-22 01:52:59,321 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:52:59,440 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 01:52:59,496 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:52:59,518 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 225 transitions, 466 flow [2022-11-22 01:52:59,522 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 225 transitions, 466 flow [2022-11-22 01:52:59,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 225 transitions, 466 flow [2022-11-22 01:52:59,682 INFO L130 PetriNetUnfolder]: 8/296 cut-off events. [2022-11-22 01:52:59,683 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 01:52:59,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 296 events. 8/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 840 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 156. Up to 4 conditions per place. [2022-11-22 01:52:59,696 INFO L119 LiptonReduction]: Number of co-enabled transitions 7144 [2022-11-22 01:58:12,011 WARN L233 SmtUtils]: Spent 3.01m on a formula simplification. DAG size of input: 266 DAG size of output: 255 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:59:40,431 WARN L233 SmtUtils]: Spent 1.47m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:02:43,029 WARN L233 SmtUtils]: Spent 3.04m on a formula simplification. DAG size of input: 266 DAG size of output: 255 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:04:02,667 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:04:46,752 WARN L233 SmtUtils]: Spent 43.63s on a formula simplification. DAG size of input: 225 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:05:05,684 WARN L233 SmtUtils]: Spent 18.93s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:05:37,372 WARN L233 SmtUtils]: Spent 31.69s on a formula simplification. DAG size of input: 225 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:05:44,966 WARN L233 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:05:44,972 INFO L134 LiptonReduction]: Checked pairs total: 36312 [2022-11-22 02:05:44,973 INFO L136 LiptonReduction]: Total number of compositions: 256 [2022-11-22 02:05:44,982 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 93 transitions, 202 flow [2022-11-22 02:05:45,239 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5657 states, 4353 states have (on average 3.6326671261199173) internal successors, (15813), 5656 states have internal predecessors, (15813), 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) [2022-11-22 02:05:45,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:05:45,267 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@733132eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:05:45,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-22 02:05:45,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 5657 states, 4353 states have (on average 3.6326671261199173) internal successors, (15813), 5656 states have internal predecessors, (15813), 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) [2022-11-22 02:05:45,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:05:45,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:45,293 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:05:45,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:05:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:45,302 INFO L85 PathProgramCache]: Analyzing trace with hash 833, now seen corresponding path program 1 times [2022-11-22 02:05:45,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:05:45,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092899129] [2022-11-22 02:05:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:45,319 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 [2022-11-22 02:05:45,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:05:45,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:05:45,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 02:05:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:45,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 02:05:45,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:45,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:45,552 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:05:45,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092899129] [2022-11-22 02:05:45,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092899129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:45,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:45,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:05:45,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861622862] [2022-11-22 02:05:45,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:45,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:05:45,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:05:45,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:05:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:05:45,618 INFO L87 Difference]: Start difference. First operand has 5657 states, 4353 states have (on average 3.6326671261199173) internal successors, (15813), 5656 states have internal predecessors, (15813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-22 02:05:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:47,400 INFO L93 Difference]: Finished difference Result 4780 states and 13206 transitions. [2022-11-22 02:05:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:05:47,403 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 02:05:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:47,484 INFO L225 Difference]: With dead ends: 4780 [2022-11-22 02:05:47,484 INFO L226 Difference]: Without dead ends: 4774 [2022-11-22 02:05:47,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:05:47,489 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:47,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:05:47,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2022-11-22 02:05:47,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 4774. [2022-11-22 02:05:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 3779 states have (on average 3.490870600688013) internal successors, (13192), 4773 states have internal predecessors, (13192), 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) [2022-11-22 02:05:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 13192 transitions. [2022-11-22 02:05:47,940 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 13192 transitions. Word has length 1 [2022-11-22 02:05:47,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:47,940 INFO L495 AbstractCegarLoop]: Abstraction has 4774 states and 13192 transitions. [2022-11-22 02:05:47,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-22 02:05:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 13192 transitions. [2022-11-22 02:05:47,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:05:47,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:47,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:05:48,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:05:48,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:05:48,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:05:48,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:48,167 INFO L85 PathProgramCache]: Analyzing trace with hash 26843, now seen corresponding path program 1 times [2022-11-22 02:05:48,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:05:48,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284490885] [2022-11-22 02:05:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:48,168 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 [2022-11-22 02:05:48,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:05:48,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:05:48,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:05:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:48,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:05:48,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:48,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:48,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:05:48,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284490885] [2022-11-22 02:05:48,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284490885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:48,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:48,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:05:48,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469748549] [2022-11-22 02:05:48,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:48,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:05:48,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:05:48,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:05:48,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:48,459 INFO L87 Difference]: Start difference. First operand 4774 states and 13192 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:49,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:50,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:51,947 INFO L93 Difference]: Finished difference Result 4775 states and 13192 transitions. [2022-11-22 02:05:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:05:51,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-22 02:05:51,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:52,006 INFO L225 Difference]: With dead ends: 4775 [2022-11-22 02:05:52,006 INFO L226 Difference]: Without dead ends: 4775 [2022-11-22 02:05:52,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:52,012 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:52,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 50 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-22 02:05:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2022-11-22 02:05:52,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4761. [2022-11-22 02:05:52,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 3775 states have (on average 3.4911258278145696) internal successors, (13179), 4760 states have internal predecessors, (13179), 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) [2022-11-22 02:05:52,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 13179 transitions. [2022-11-22 02:05:52,261 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 13179 transitions. Word has length 2 [2022-11-22 02:05:52,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:52,262 INFO L495 AbstractCegarLoop]: Abstraction has 4761 states and 13179 transitions. [2022-11-22 02:05:52,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:52,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 13179 transitions. [2022-11-22 02:05:52,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:05:52,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:52,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:05:52,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:05:52,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:05:52,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:05:52,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash 822158, now seen corresponding path program 1 times [2022-11-22 02:05:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:05:52,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016718775] [2022-11-22 02:05:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:52,478 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 [2022-11-22 02:05:52,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:05:52,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:05:52,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:05:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:52,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:05:52,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:52,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:52,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 02:05:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:53,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:53,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:05:53,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016718775] [2022-11-22 02:05:53,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016718775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:53,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:53,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:05:53,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377073277] [2022-11-22 02:05:53,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:53,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:05:53,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:05:53,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:05:53,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:53,106 INFO L87 Difference]: Start difference. First operand 4761 states and 13179 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:05:54,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:55,307 INFO L93 Difference]: Finished difference Result 4737 states and 13133 transitions. [2022-11-22 02:05:55,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:05:55,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 02:05:55,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:55,352 INFO L225 Difference]: With dead ends: 4737 [2022-11-22 02:05:55,352 INFO L226 Difference]: Without dead ends: 4737 [2022-11-22 02:05:55,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:55,363 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:55,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 9 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 02:05:55,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4737 states. [2022-11-22 02:05:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 4737. [2022-11-22 02:05:55,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4737 states, 3765 states have (on average 3.488180610889774) internal successors, (13133), 4736 states have internal predecessors, (13133), 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) [2022-11-22 02:05:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 13133 transitions. [2022-11-22 02:05:55,535 INFO L78 Accepts]: Start accepts. Automaton has 4737 states and 13133 transitions. Word has length 3 [2022-11-22 02:05:55,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:55,535 INFO L495 AbstractCegarLoop]: Abstraction has 4737 states and 13133 transitions. [2022-11-22 02:05:55,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:05:55,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4737 states and 13133 transitions. [2022-11-22 02:05:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:05:55,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:55,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:05:55,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:05:55,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:05:55,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:05:55,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:55,753 INFO L85 PathProgramCache]: Analyzing trace with hash 822157, now seen corresponding path program 1 times [2022-11-22 02:05:55,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:05:55,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811255003] [2022-11-22 02:05:55,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:55,754 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 [2022-11-22 02:05:55,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:05:55,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:05:55,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:05:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:55,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:05:55,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:56,101 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 02:05:56,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-22 02:05:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:56,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:56,173 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:05:56,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811255003] [2022-11-22 02:05:56,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811255003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:56,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:56,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:05:56,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609523018] [2022-11-22 02:05:56,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:56,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:05:56,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:05:56,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:05:56,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:56,175 INFO L87 Difference]: Start difference. First operand 4737 states and 13133 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:05:57,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:05:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:05:58,418 INFO L93 Difference]: Finished difference Result 4725 states and 13099 transitions. [2022-11-22 02:05:58,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:05:58,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 02:05:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:05:58,443 INFO L225 Difference]: With dead ends: 4725 [2022-11-22 02:05:58,443 INFO L226 Difference]: Without dead ends: 4725 [2022-11-22 02:05:58,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:58,444 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 57 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:05:58,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 15 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:05:58,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2022-11-22 02:05:58,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 4713. [2022-11-22 02:05:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4713 states, 3755 states have (on average 3.485219707057257) internal successors, (13087), 4712 states have internal predecessors, (13087), 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) [2022-11-22 02:05:58,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4713 states to 4713 states and 13087 transitions. [2022-11-22 02:05:58,637 INFO L78 Accepts]: Start accepts. Automaton has 4713 states and 13087 transitions. Word has length 3 [2022-11-22 02:05:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:05:58,637 INFO L495 AbstractCegarLoop]: Abstraction has 4713 states and 13087 transitions. [2022-11-22 02:05:58,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:05:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 4713 states and 13087 transitions. [2022-11-22 02:05:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:05:58,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:05:58,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:05:58,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:05:58,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:05:58,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:05:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:05:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash 831630, now seen corresponding path program 1 times [2022-11-22 02:05:58,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:05:58,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282262711] [2022-11-22 02:05:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:05:58,856 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 [2022-11-22 02:05:58,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:05:58,857 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:05:58,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:05:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:05:59,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:05:59,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:59,086 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 5 [2022-11-22 02:05:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:59,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:05:59,148 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:05:59,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282262711] [2022-11-22 02:05:59,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282262711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:05:59,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:05:59,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:05:59,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737963787] [2022-11-22 02:05:59,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:05:59,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:05:59,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:05:59,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:05:59,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:05:59,150 INFO L87 Difference]: Start difference. First operand 4713 states and 13087 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:06:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:01,017 INFO L93 Difference]: Finished difference Result 4145 states and 11463 transitions. [2022-11-22 02:06:01,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 02:06:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:01,037 INFO L225 Difference]: With dead ends: 4145 [2022-11-22 02:06:01,037 INFO L226 Difference]: Without dead ends: 4145 [2022-11-22 02:06:01,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:01,038 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:01,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 23 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:06:01,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2022-11-22 02:06:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4140. [2022-11-22 02:06:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 3378 states have (on average 3.3925399644760215) internal successors, (11460), 4139 states have internal predecessors, (11460), 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) [2022-11-22 02:06:01,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 11460 transitions. [2022-11-22 02:06:01,191 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 11460 transitions. Word has length 3 [2022-11-22 02:06:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:01,192 INFO L495 AbstractCegarLoop]: Abstraction has 4140 states and 11460 transitions. [2022-11-22 02:06:01,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:06:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 11460 transitions. [2022-11-22 02:06:01,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:06:01,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:01,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:06:01,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:01,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:01,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:01,416 INFO L85 PathProgramCache]: Analyzing trace with hash 831524, now seen corresponding path program 1 times [2022-11-22 02:06:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:01,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839865879] [2022-11-22 02:06:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:01,417 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 [2022-11-22 02:06:01,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:01,418 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:01,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-22 02:06:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:01,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:06:01,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:01,603 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 [2022-11-22 02:06:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:01,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:01,636 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:01,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839865879] [2022-11-22 02:06:01,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839865879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:01,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:01,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:06:01,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525384284] [2022-11-22 02:06:01,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:01,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:01,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:01,637 INFO L87 Difference]: Start difference. First operand 4140 states and 11460 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:06:02,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:03,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:03,688 INFO L93 Difference]: Finished difference Result 3851 states and 10642 transitions. [2022-11-22 02:06:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:03,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 02:06:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:03,704 INFO L225 Difference]: With dead ends: 3851 [2022-11-22 02:06:03,704 INFO L226 Difference]: Without dead ends: 3851 [2022-11-22 02:06:03,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:03,705 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 56 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:03,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 15 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:06:03,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2022-11-22 02:06:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3851. [2022-11-22 02:06:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3188 states have (on average 3.338143036386449) internal successors, (10642), 3850 states have internal predecessors, (10642), 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) [2022-11-22 02:06:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 10642 transitions. [2022-11-22 02:06:03,809 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 10642 transitions. Word has length 3 [2022-11-22 02:06:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:03,809 INFO L495 AbstractCegarLoop]: Abstraction has 3851 states and 10642 transitions. [2022-11-22 02:06:03,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-22 02:06:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 10642 transitions. [2022-11-22 02:06:03,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:06:03,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:03,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:06:03,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:04,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:04,024 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:04,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash 25488131, now seen corresponding path program 1 times [2022-11-22 02:06:04,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:04,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508695709] [2022-11-22 02:06:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:04,025 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 [2022-11-22 02:06:04,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:04,026 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:04,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:04,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 02:06:04,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:04,253 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 [2022-11-22 02:06:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:04,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:04,353 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:04,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508695709] [2022-11-22 02:06:04,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508695709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:04,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:04,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:06:04,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284586593] [2022-11-22 02:06:04,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:04,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:06:04,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:04,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:06:04,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:04,355 INFO L87 Difference]: Start difference. First operand 3851 states and 10642 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-22 02:06:06,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:09,592 INFO L93 Difference]: Finished difference Result 3233 states and 8728 transitions. [2022-11-22 02:06:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:06:09,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 02:06:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:09,612 INFO L225 Difference]: With dead ends: 3233 [2022-11-22 02:06:09,612 INFO L226 Difference]: Without dead ends: 3233 [2022-11-22 02:06:09,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:06:09,613 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 163 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:09,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 33 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 02:06:09,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2022-11-22 02:06:09,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3089. [2022-11-22 02:06:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2657 states have (on average 3.1881821603312006) internal successors, (8471), 3088 states have internal predecessors, (8471), 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) [2022-11-22 02:06:09,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 8471 transitions. [2022-11-22 02:06:09,737 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 8471 transitions. Word has length 4 [2022-11-22 02:06:09,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:09,737 INFO L495 AbstractCegarLoop]: Abstraction has 3089 states and 8471 transitions. [2022-11-22 02:06:09,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-22 02:06:09,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 8471 transitions. [2022-11-22 02:06:09,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:06:09,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:09,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:06:09,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:09,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:09,953 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:09,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:09,953 INFO L85 PathProgramCache]: Analyzing trace with hash 25488132, now seen corresponding path program 1 times [2022-11-22 02:06:09,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:09,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718393369] [2022-11-22 02:06:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:09,954 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 [2022-11-22 02:06:09,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:09,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:09,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:10,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 02:06:10,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:10,185 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 5 [2022-11-22 02:06:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:10,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:10,345 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:10,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718393369] [2022-11-22 02:06:10,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718393369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:10,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:10,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:06:10,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182929511] [2022-11-22 02:06:10,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:10,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:06:10,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:10,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:06:10,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:10,348 INFO L87 Difference]: Start difference. First operand 3089 states and 8471 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-22 02:06:12,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:13,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:15,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:15,818 INFO L93 Difference]: Finished difference Result 2657 states and 7095 transitions. [2022-11-22 02:06:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:06:15,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 02:06:15,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:15,829 INFO L225 Difference]: With dead ends: 2657 [2022-11-22 02:06:15,829 INFO L226 Difference]: Without dead ends: 2653 [2022-11-22 02:06:15,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:06:15,830 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 96 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:15,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 38 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 02:06:15,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2022-11-22 02:06:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2647. [2022-11-22 02:06:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2299 states have (on average 3.078294910830796) internal successors, (7077), 2646 states have internal predecessors, (7077), 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) [2022-11-22 02:06:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 7077 transitions. [2022-11-22 02:06:15,921 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 7077 transitions. Word has length 4 [2022-11-22 02:06:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:15,922 INFO L495 AbstractCegarLoop]: Abstraction has 2647 states and 7077 transitions. [2022-11-22 02:06:15,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-22 02:06:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 7077 transitions. [2022-11-22 02:06:15,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:06:15,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:15,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:06:15,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:16,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:16,137 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:16,138 INFO L85 PathProgramCache]: Analyzing trace with hash 799109750, now seen corresponding path program 1 times [2022-11-22 02:06:16,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:16,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734203376] [2022-11-22 02:06:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:16,138 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 [2022-11-22 02:06:16,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:16,140 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:16,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:16,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 02:06:16,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:16,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 45 [2022-11-22 02:06:16,583 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:06:16,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2022-11-22 02:06:16,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:16,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:16,630 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:16,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734203376] [2022-11-22 02:06:16,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734203376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:16,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:16,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:06:16,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123035391] [2022-11-22 02:06:16,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:16,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:16,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:16,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:16,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:16,632 INFO L87 Difference]: Start difference. First operand 2647 states and 7077 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:17,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:20,163 INFO L93 Difference]: Finished difference Result 2958 states and 7921 transitions. [2022-11-22 02:06:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:06:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:20,175 INFO L225 Difference]: With dead ends: 2958 [2022-11-22 02:06:20,175 INFO L226 Difference]: Without dead ends: 2958 [2022-11-22 02:06:20,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:20,176 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:20,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 47 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-22 02:06:20,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-11-22 02:06:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2766. [2022-11-22 02:06:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2419 states have (on average 3.058701942951633) internal successors, (7399), 2765 states have internal predecessors, (7399), 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) [2022-11-22 02:06:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 7399 transitions. [2022-11-22 02:06:20,263 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 7399 transitions. Word has length 5 [2022-11-22 02:06:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:20,263 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 7399 transitions. [2022-11-22 02:06:20,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 7399 transitions. [2022-11-22 02:06:20,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:06:20,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:20,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:06:20,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:20,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:20,480 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:20,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1276310157, now seen corresponding path program 1 times [2022-11-22 02:06:20,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:20,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835047045] [2022-11-22 02:06:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:20,482 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 [2022-11-22 02:06:20,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:20,482 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:20,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:20,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 02:06:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:20,713 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 [2022-11-22 02:06:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:20,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:20,837 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:20,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835047045] [2022-11-22 02:06:20,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835047045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:20,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:20,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:06:20,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461396567] [2022-11-22 02:06:20,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:20,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:06:20,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:20,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:06:20,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:20,839 INFO L87 Difference]: Start difference. First operand 2766 states and 7399 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-22 02:06:22,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:26,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:26,367 INFO L93 Difference]: Finished difference Result 2374 states and 6204 transitions. [2022-11-22 02:06:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:06:26,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:06:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:26,375 INFO L225 Difference]: With dead ends: 2374 [2022-11-22 02:06:26,375 INFO L226 Difference]: Without dead ends: 2374 [2022-11-22 02:06:26,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:06:26,377 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 146 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:26,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 24 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 02:06:26,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-11-22 02:06:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 2247. [2022-11-22 02:06:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2020 states have (on average 2.9623762376237623) internal successors, (5984), 2246 states have internal predecessors, (5984), 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) [2022-11-22 02:06:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 5984 transitions. [2022-11-22 02:06:26,456 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 5984 transitions. Word has length 6 [2022-11-22 02:06:26,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:26,457 INFO L495 AbstractCegarLoop]: Abstraction has 2247 states and 5984 transitions. [2022-11-22 02:06:26,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-22 02:06:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 5984 transitions. [2022-11-22 02:06:26,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:06:26,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:26,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:06:26,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:26,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:26,675 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:26,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1276310156, now seen corresponding path program 1 times [2022-11-22 02:06:26,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:26,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138756917] [2022-11-22 02:06:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:26,677 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 [2022-11-22 02:06:26,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:26,678 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:26,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:26,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 02:06:26,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:26,925 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 5 [2022-11-22 02:06:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:27,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:27,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:27,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138756917] [2022-11-22 02:06:27,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138756917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:27,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:27,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:06:27,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650843229] [2022-11-22 02:06:27,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:27,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:06:27,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:06:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:27,141 INFO L87 Difference]: Start difference. First operand 2247 states and 5984 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-22 02:06:32,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:32,367 INFO L93 Difference]: Finished difference Result 1961 states and 5088 transitions. [2022-11-22 02:06:32,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:06:32,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:06:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:32,372 INFO L225 Difference]: With dead ends: 1961 [2022-11-22 02:06:32,373 INFO L226 Difference]: Without dead ends: 1953 [2022-11-22 02:06:32,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:06:32,374 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:32,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 35 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 02:06:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2022-11-22 02:06:32,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1948. [2022-11-22 02:06:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1751 states have (on average 2.885208452312964) internal successors, (5052), 1947 states have internal predecessors, (5052), 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) [2022-11-22 02:06:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 5052 transitions. [2022-11-22 02:06:32,421 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 5052 transitions. Word has length 6 [2022-11-22 02:06:32,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:32,422 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 5052 transitions. [2022-11-22 02:06:32,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-22 02:06:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 5052 transitions. [2022-11-22 02:06:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:06:32,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:32,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:06:32,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:32,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:32,638 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:32,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1276309737, now seen corresponding path program 1 times [2022-11-22 02:06:32,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:32,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836407952] [2022-11-22 02:06:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:32,639 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 [2022-11-22 02:06:32,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:32,640 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:32,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-22 02:06:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:32,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 02:06:32,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:32,928 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 5 [2022-11-22 02:06:32,943 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 [2022-11-22 02:06:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:33,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:33,090 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:33,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836407952] [2022-11-22 02:06:33,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836407952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:33,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:33,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:06:33,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28614004] [2022-11-22 02:06:33,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:33,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:33,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:33,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:33,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:33,092 INFO L87 Difference]: Start difference. First operand 1948 states and 5052 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-22 02:06:34,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:34,465 INFO L93 Difference]: Finished difference Result 1861 states and 4866 transitions. [2022-11-22 02:06:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:34,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:06:34,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:34,469 INFO L225 Difference]: With dead ends: 1861 [2022-11-22 02:06:34,470 INFO L226 Difference]: Without dead ends: 1861 [2022-11-22 02:06:34,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:34,471 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:34,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 7 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 02:06:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2022-11-22 02:06:34,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1858. [2022-11-22 02:06:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1683 states have (on average 2.8894830659536543) internal successors, (4863), 1857 states have internal predecessors, (4863), 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) [2022-11-22 02:06:34,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 4863 transitions. [2022-11-22 02:06:34,532 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 4863 transitions. Word has length 6 [2022-11-22 02:06:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:34,533 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 4863 transitions. [2022-11-22 02:06:34,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-22 02:06:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 4863 transitions. [2022-11-22 02:06:34,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:06:34,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:34,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:06:34,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:34,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:34,752 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:34,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:34,752 INFO L85 PathProgramCache]: Analyzing trace with hash -997400704, now seen corresponding path program 1 times [2022-11-22 02:06:34,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:34,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245154708] [2022-11-22 02:06:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:34,753 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 [2022-11-22 02:06:34,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:34,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:34,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:35,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 02:06:35,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:35,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:35,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:35,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:35,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 41 [2022-11-22 02:06:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:35,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:35,179 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:35,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245154708] [2022-11-22 02:06:35,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245154708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:35,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:35,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:06:35,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535953364] [2022-11-22 02:06:35,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:35,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:35,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:35,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:35,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:35,182 INFO L87 Difference]: Start difference. First operand 1858 states and 4863 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 02:06:37,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:38,646 INFO L93 Difference]: Finished difference Result 1981 states and 5186 transitions. [2022-11-22 02:06:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:38,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:06:38,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:38,652 INFO L225 Difference]: With dead ends: 1981 [2022-11-22 02:06:38,652 INFO L226 Difference]: Without dead ends: 1981 [2022-11-22 02:06:38,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:38,652 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:38,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 42 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-22 02:06:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2022-11-22 02:06:38,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1917. [2022-11-22 02:06:38,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1743 states have (on average 2.8973034997131384) internal successors, (5050), 1916 states have internal predecessors, (5050), 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) [2022-11-22 02:06:38,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 5050 transitions. [2022-11-22 02:06:38,700 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 5050 transitions. Word has length 6 [2022-11-22 02:06:38,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:38,701 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 5050 transitions. [2022-11-22 02:06:38,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 02:06:38,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 5050 transitions. [2022-11-22 02:06:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:06:38,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:38,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:38,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:38,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:38,918 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:38,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:38,918 INFO L85 PathProgramCache]: Analyzing trace with hash -910894070, now seen corresponding path program 1 times [2022-11-22 02:06:38,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:38,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339007334] [2022-11-22 02:06:38,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:38,919 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 [2022-11-22 02:06:38,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:38,920 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:38,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:39,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 02:06:39,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:39,309 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 [2022-11-22 02:06:39,323 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 5 [2022-11-22 02:06:39,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:39,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 02:06:39,532 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-22 02:06:39,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-22 02:06:39,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:39,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:39,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:39,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339007334] [2022-11-22 02:06:39,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339007334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:39,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:39,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:06:39,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700711930] [2022-11-22 02:06:39,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:39,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:39,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:39,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:39,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:06:39,584 INFO L87 Difference]: Start difference. First operand 1917 states and 5050 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 02:06:42,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:42,738 INFO L93 Difference]: Finished difference Result 1681 states and 4381 transitions. [2022-11-22 02:06:42,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:06:42,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 02:06:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:42,743 INFO L225 Difference]: With dead ends: 1681 [2022-11-22 02:06:42,743 INFO L226 Difference]: Without dead ends: 1681 [2022-11-22 02:06:42,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:42,744 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 83 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:42,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 15 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 02:06:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2022-11-22 02:06:42,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1674. [2022-11-22 02:06:42,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1548 states have (on average 2.8262273901808785) internal successors, (4375), 1673 states have internal predecessors, (4375), 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) [2022-11-22 02:06:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 4375 transitions. [2022-11-22 02:06:42,785 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 4375 transitions. Word has length 7 [2022-11-22 02:06:42,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:42,786 INFO L495 AbstractCegarLoop]: Abstraction has 1674 states and 4375 transitions. [2022-11-22 02:06:42,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 02:06:42,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 4375 transitions. [2022-11-22 02:06:42,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:06:42,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:42,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:42,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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)] Ended with exit code 0 [2022-11-22 02:06:43,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:43,003 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1996766411, now seen corresponding path program 1 times [2022-11-22 02:06:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:43,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930523926] [2022-11-22 02:06:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:43,005 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 [2022-11-22 02:06:43,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:43,006 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:43,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:43,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 02:06:43,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:43,347 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 [2022-11-22 02:06:43,362 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 5 [2022-11-22 02:06:43,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:43,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 02:06:43,694 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-22 02:06:43,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-22 02:06:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:43,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:43,749 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:43,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930523926] [2022-11-22 02:06:43,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930523926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:43,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:43,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:43,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243791503] [2022-11-22 02:06:43,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:43,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:06:43,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:43,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:06:43,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:06:43,751 INFO L87 Difference]: Start difference. First operand 1674 states and 4375 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-11-22 02:06:45,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:46,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:49,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:49,216 INFO L93 Difference]: Finished difference Result 1651 states and 4162 transitions. [2022-11-22 02:06:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:06:49,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 02:06:49,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:49,220 INFO L225 Difference]: With dead ends: 1651 [2022-11-22 02:06:49,220 INFO L226 Difference]: Without dead ends: 1651 [2022-11-22 02:06:49,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:49,221 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 198 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:49,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 12 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 02:06:49,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2022-11-22 02:06:49,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1404. [2022-11-22 02:06:49,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1338 states have (on average 2.7070254110612857) internal successors, (3622), 1403 states have internal predecessors, (3622), 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) [2022-11-22 02:06:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 3622 transitions. [2022-11-22 02:06:49,259 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 3622 transitions. Word has length 8 [2022-11-22 02:06:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:49,260 INFO L495 AbstractCegarLoop]: Abstraction has 1404 states and 3622 transitions. [2022-11-22 02:06:49,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-11-22 02:06:49,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 3622 transitions. [2022-11-22 02:06:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:06:49,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:49,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:49,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:49,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:49,477 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:49,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1826808775, now seen corresponding path program 1 times [2022-11-22 02:06:49,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:49,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586651774] [2022-11-22 02:06:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:49,478 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 [2022-11-22 02:06:49,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:49,481 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:49,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:49,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 02:06:49,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:49,819 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 [2022-11-22 02:06:49,834 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 5 [2022-11-22 02:06:50,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:50,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 02:06:50,207 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-22 02:06:50,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-22 02:06:50,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:50,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:50,265 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:50,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586651774] [2022-11-22 02:06:50,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586651774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:50,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:50,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:06:50,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216382863] [2022-11-22 02:06:50,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:50,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:06:50,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:50,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:06:50,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:06:50,267 INFO L87 Difference]: Start difference. First operand 1404 states and 3622 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-11-22 02:06:51,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:52,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:06:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:55,768 INFO L93 Difference]: Finished difference Result 1456 states and 3640 transitions. [2022-11-22 02:06:55,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:06:55,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 02:06:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:55,771 INFO L225 Difference]: With dead ends: 1456 [2022-11-22 02:06:55,772 INFO L226 Difference]: Without dead ends: 1456 [2022-11-22 02:06:55,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:06:55,773 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 179 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:55,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 12 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 02:06:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-11-22 02:06:55,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1209. [2022-11-22 02:06:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1164 states have (on average 2.663230240549828) internal successors, (3100), 1208 states have internal predecessors, (3100), 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) [2022-11-22 02:06:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3100 transitions. [2022-11-22 02:06:55,821 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3100 transitions. Word has length 8 [2022-11-22 02:06:55,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:55,821 INFO L495 AbstractCegarLoop]: Abstraction has 1209 states and 3100 transitions. [2022-11-22 02:06:55,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-11-22 02:06:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3100 transitions. [2022-11-22 02:06:55,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:06:55,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:55,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:55,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:56,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:56,044 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash -724385988, now seen corresponding path program 1 times [2022-11-22 02:06:56,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:56,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612387319] [2022-11-22 02:06:56,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:56,045 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 [2022-11-22 02:06:56,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:56,046 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:56,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:56,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:06:56,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:56,544 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_509| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_509|) (_ bv0 1)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_509| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-22 02:06:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:56,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:56,545 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:56,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612387319] [2022-11-22 02:06:56,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612387319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:56,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:56,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:06:56,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326757981] [2022-11-22 02:06:56,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:56,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:56,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:56,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-22 02:06:56,547 INFO L87 Difference]: Start difference. First operand 1209 states and 3100 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 02:06:58,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:58,384 INFO L93 Difference]: Finished difference Result 1233 states and 3155 transitions. [2022-11-22 02:06:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:58,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 02:06:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:58,387 INFO L225 Difference]: With dead ends: 1233 [2022-11-22 02:06:58,388 INFO L226 Difference]: Without dead ends: 1220 [2022-11-22 02:06:58,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-22 02:06:58,388 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:58,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 10 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 88 Unchecked, 1.8s Time] [2022-11-22 02:06:58,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2022-11-22 02:06:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2022-11-22 02:06:58,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1175 states have (on average 2.6638297872340426) internal successors, (3130), 1219 states have internal predecessors, (3130), 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) [2022-11-22 02:06:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 3130 transitions. [2022-11-22 02:06:58,411 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 3130 transitions. Word has length 8 [2022-11-22 02:06:58,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:58,411 INFO L495 AbstractCegarLoop]: Abstraction has 1220 states and 3130 transitions. [2022-11-22 02:06:58,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 02:06:58,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 3130 transitions. [2022-11-22 02:06:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:06:58,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:58,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:58,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:58,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:06:58,628 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:06:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash 803930000, now seen corresponding path program 1 times [2022-11-22 02:06:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:06:58,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705489628] [2022-11-22 02:06:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:58,629 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 [2022-11-22 02:06:58,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:06:58,630 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:06:58,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:06:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:58,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 02:06:58,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:58,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:58,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:58,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:58,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:58,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:58,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-11-22 02:06:59,087 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:06:59,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 89 [2022-11-22 02:06:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:59,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:59,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:06:59,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705489628] [2022-11-22 02:06:59,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705489628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:59,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:59,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:06:59,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089008410] [2022-11-22 02:06:59,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:59,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:59,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:06:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:59,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:59,136 INFO L87 Difference]: Start difference. First operand 1220 states and 3130 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-22 02:07:01,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:02,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:02,199 INFO L93 Difference]: Finished difference Result 1490 states and 3797 transitions. [2022-11-22 02:07:02,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:02,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:07:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:02,204 INFO L225 Difference]: With dead ends: 1490 [2022-11-22 02:07:02,204 INFO L226 Difference]: Without dead ends: 1490 [2022-11-22 02:07:02,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:02,205 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:02,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 02:07:02,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-11-22 02:07:02,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1280. [2022-11-22 02:07:02,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1235 states have (on average 2.6607287449392714) internal successors, (3286), 1279 states have internal predecessors, (3286), 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) [2022-11-22 02:07:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 3286 transitions. [2022-11-22 02:07:02,236 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 3286 transitions. Word has length 9 [2022-11-22 02:07:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:02,237 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 3286 transitions. [2022-11-22 02:07:02,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-22 02:07:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 3286 transitions. [2022-11-22 02:07:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:07:02,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:02,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:02,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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)] Ended with exit code 0 [2022-11-22 02:07:02,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:07:02,455 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:07:02,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:02,455 INFO L85 PathProgramCache]: Analyzing trace with hash -847973104, now seen corresponding path program 1 times [2022-11-22 02:07:02,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:07:02,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296242521] [2022-11-22 02:07:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:02,456 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 [2022-11-22 02:07:02,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:07:02,457 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:07:02,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:02,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:07:02,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:07:02,888 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-22 02:07:02,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-22 02:07:03,039 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:07:03,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-22 02:07:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:03,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:07:03,119 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:07:03,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296242521] [2022-11-22 02:07:03,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296242521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:03,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:03,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:07:03,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452498588] [2022-11-22 02:07:03,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:03,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:07:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:07:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:07:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:03,121 INFO L87 Difference]: Start difference. First operand 1280 states and 3286 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:04,491 INFO L93 Difference]: Finished difference Result 1244 states and 3190 transitions. [2022-11-22 02:07:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:04,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 02:07:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:04,494 INFO L225 Difference]: With dead ends: 1244 [2022-11-22 02:07:04,494 INFO L226 Difference]: Without dead ends: 1244 [2022-11-22 02:07:04,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:04,494 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:04,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 9 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 02:07:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-11-22 02:07:04,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1244. [2022-11-22 02:07:04,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1200 states have (on average 2.658333333333333) internal successors, (3190), 1243 states have internal predecessors, (3190), 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) [2022-11-22 02:07:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3190 transitions. [2022-11-22 02:07:04,515 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3190 transitions. Word has length 10 [2022-11-22 02:07:04,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:04,515 INFO L495 AbstractCegarLoop]: Abstraction has 1244 states and 3190 transitions. [2022-11-22 02:07:04,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3190 transitions. [2022-11-22 02:07:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:07:04,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:04,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:04,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:04,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:07:04,727 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:07:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:04,728 INFO L85 PathProgramCache]: Analyzing trace with hash -847973103, now seen corresponding path program 1 times [2022-11-22 02:07:04,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:07:04,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161202913] [2022-11-22 02:07:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:04,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:07:04,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:07:04,730 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:07:04,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:05,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 02:07:05,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:07:05,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:05,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 02:07:05,400 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:07:05,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 19 [2022-11-22 02:07:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:05,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:07:05,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:07:05,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161202913] [2022-11-22 02:07:05,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161202913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:05,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:05,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:07:05,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206741716] [2022-11-22 02:07:05,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:05,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:07:05,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:07:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:07:05,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:05,563 INFO L87 Difference]: Start difference. First operand 1244 states and 3190 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:06,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:07,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:07,331 INFO L93 Difference]: Finished difference Result 1208 states and 3094 transitions. [2022-11-22 02:07:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:07,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 02:07:07,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:07,335 INFO L225 Difference]: With dead ends: 1208 [2022-11-22 02:07:07,335 INFO L226 Difference]: Without dead ends: 1208 [2022-11-22 02:07:07,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:07,336 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:07,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 9 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:07:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-22 02:07:07,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1208. [2022-11-22 02:07:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1165 states have (on average 2.655793991416309) internal successors, (3094), 1207 states have internal predecessors, (3094), 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) [2022-11-22 02:07:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 3094 transitions. [2022-11-22 02:07:07,361 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 3094 transitions. Word has length 10 [2022-11-22 02:07:07,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:07,361 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 3094 transitions. [2022-11-22 02:07:07,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:07,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 3094 transitions. [2022-11-22 02:07:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:07:07,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:07,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:07,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:07,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:07:07,580 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:07:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash -847973273, now seen corresponding path program 1 times [2022-11-22 02:07:07,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:07:07,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320734804] [2022-11-22 02:07:07,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:07,581 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 [2022-11-22 02:07:07,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:07:07,582 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:07:07,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:07,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 02:07:07,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:07:07,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:07,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:07,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:07,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:07:07,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:07:07,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-11-22 02:07:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:08,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:07:08,087 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:07:08,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320734804] [2022-11-22 02:07:08,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320734804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:08,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:08,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:07:08,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352696255] [2022-11-22 02:07:08,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:08,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:07:08,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:07:08,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:07:08,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:08,090 INFO L87 Difference]: Start difference. First operand 1208 states and 3094 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:09,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:07:10,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:10,880 INFO L93 Difference]: Finished difference Result 1382 states and 3509 transitions. [2022-11-22 02:07:10,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:10,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 02:07:10,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:10,884 INFO L225 Difference]: With dead ends: 1382 [2022-11-22 02:07:10,884 INFO L226 Difference]: Without dead ends: 1382 [2022-11-22 02:07:10,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:10,885 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:10,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 31 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-22 02:07:10,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-11-22 02:07:10,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1268. [2022-11-22 02:07:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1225 states have (on average 2.679183673469388) internal successors, (3282), 1267 states have internal predecessors, (3282), 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) [2022-11-22 02:07:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 3282 transitions. [2022-11-22 02:07:10,913 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 3282 transitions. Word has length 10 [2022-11-22 02:07:10,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:10,914 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 3282 transitions. [2022-11-22 02:07:10,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:10,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 3282 transitions. [2022-11-22 02:07:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:07:10,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:10,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:10,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:11,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:07:11,127 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-22 02:07:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash 368092710, now seen corresponding path program 1 times [2022-11-22 02:07:11,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:07:11,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67077395] [2022-11-22 02:07:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:11,129 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 [2022-11-22 02:07:11,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:07:11,130 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 02:07:11,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:07:11,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:07:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:07:11,774 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-22 02:07:11,774 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:07:11,775 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (62 of 63 remaining) [2022-11-22 02:07:11,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (61 of 63 remaining) [2022-11-22 02:07:11,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 63 remaining) [2022-11-22 02:07:11,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 63 remaining) [2022-11-22 02:07:11,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 63 remaining) [2022-11-22 02:07:11,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 63 remaining) [2022-11-22 02:07:11,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 63 remaining) [2022-11-22 02:07:11,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 63 remaining) [2022-11-22 02:07:11,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 63 remaining) [2022-11-22 02:07:11,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 63 remaining) [2022-11-22 02:07:11,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 63 remaining) [2022-11-22 02:07:11,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 63 remaining) [2022-11-22 02:07:11,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 63 remaining) [2022-11-22 02:07:11,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 63 remaining) [2022-11-22 02:07:11,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 63 remaining) [2022-11-22 02:07:11,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 63 remaining) [2022-11-22 02:07:11,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 63 remaining) [2022-11-22 02:07:11,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 63 remaining) [2022-11-22 02:07:11,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 63 remaining) [2022-11-22 02:07:11,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 63 remaining) [2022-11-22 02:07:11,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 63 remaining) [2022-11-22 02:07:11,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 63 remaining) [2022-11-22 02:07:11,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 63 remaining) [2022-11-22 02:07:11,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 63 remaining) [2022-11-22 02:07:11,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (38 of 63 remaining) [2022-11-22 02:07:11,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 63 remaining) [2022-11-22 02:07:11,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 63 remaining) [2022-11-22 02:07:11,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK (35 of 63 remaining) [2022-11-22 02:07:11,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 63 remaining) [2022-11-22 02:07:11,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 63 remaining) [2022-11-22 02:07:11,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 63 remaining) [2022-11-22 02:07:11,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 63 remaining) [2022-11-22 02:07:11,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 63 remaining) [2022-11-22 02:07:11,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 63 remaining) [2022-11-22 02:07:11,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 63 remaining) [2022-11-22 02:07:11,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 63 remaining) [2022-11-22 02:07:11,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK (26 of 63 remaining) [2022-11-22 02:07:11,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 63 remaining) [2022-11-22 02:07:11,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 63 remaining) [2022-11-22 02:07:11,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (23 of 63 remaining) [2022-11-22 02:07:11,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 63 remaining) [2022-11-22 02:07:11,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 63 remaining) [2022-11-22 02:07:11,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK (20 of 63 remaining) [2022-11-22 02:07:11,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 63 remaining) [2022-11-22 02:07:11,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 63 remaining) [2022-11-22 02:07:11,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 63 remaining) [2022-11-22 02:07:11,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 63 remaining) [2022-11-22 02:07:11,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 63 remaining) [2022-11-22 02:07:11,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 63 remaining) [2022-11-22 02:07:11,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 63 remaining) [2022-11-22 02:07:11,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 63 remaining) [2022-11-22 02:07:11,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 63 remaining) [2022-11-22 02:07:11,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 63 remaining) [2022-11-22 02:07:11,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 63 remaining) [2022-11-22 02:07:11,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 63 remaining) [2022-11-22 02:07:11,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 63 remaining) [2022-11-22 02:07:11,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 63 remaining) [2022-11-22 02:07:11,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 63 remaining) [2022-11-22 02:07:11,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 63 remaining) [2022-11-22 02:07:11,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 63 remaining) [2022-11-22 02:07:11,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 63 remaining) [2022-11-22 02:07:11,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 63 remaining) [2022-11-22 02:07:11,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 63 remaining) [2022-11-22 02:07:11,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 02:07:11,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:07:11,999 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:12,005 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:07:12,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:07:12,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:07:12 BasicIcfg [2022-11-22 02:07:12,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:07:12,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:07:12,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:07:12,040 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:07:12,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:52:59" (3/4) ... [2022-11-22 02:07:12,051 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:07:12,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:07:12,052 INFO L158 Benchmark]: Toolchain (without parser) took 855836.77ms. Allocated memory was 69.2MB in the beginning and 352.3MB in the end (delta: 283.1MB). Free memory was 38.2MB in the beginning and 220.0MB in the end (delta: -181.8MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. [2022-11-22 02:07:12,053 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:07:12,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1496.75ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.0MB in the beginning and 49.5MB in the end (delta: -11.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-11-22 02:07:12,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.51ms. Allocated memory is still 83.9MB. Free memory was 49.5MB in the beginning and 46.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:07:12,055 INFO L158 Benchmark]: Boogie Preprocessor took 104.81ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 42.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:07:12,056 INFO L158 Benchmark]: RCFGBuilder took 1334.00ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 42.4MB in the beginning and 56.6MB in the end (delta: -14.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-22 02:07:12,056 INFO L158 Benchmark]: TraceAbstraction took 852747.02ms. Allocated memory was 100.7MB in the beginning and 352.3MB in the end (delta: 251.7MB). Free memory was 55.7MB in the beginning and 220.0MB in the end (delta: -164.3MB). Peak memory consumption was 237.9MB. Max. memory is 16.1GB. [2022-11-22 02:07:12,056 INFO L158 Benchmark]: Witness Printer took 11.76ms. Allocated memory is still 352.3MB. Free memory is still 220.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:07:12,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1496.75ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.0MB in the beginning and 49.5MB in the end (delta: -11.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.51ms. Allocated memory is still 83.9MB. Free memory was 49.5MB in the beginning and 46.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.81ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 42.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1334.00ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 42.4MB in the beginning and 56.6MB in the end (delta: -14.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 852747.02ms. Allocated memory was 100.7MB in the beginning and 352.3MB in the end (delta: 251.7MB). Free memory was 55.7MB in the beginning and 220.0MB in the end (delta: -164.3MB). Peak memory consumption was 237.9MB. Max. memory is 16.1GB. * Witness Printer took 11.76ms. Allocated memory is still 352.3MB. Free memory is still 220.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 765.5s, 225 PlacesBefore, 96 PlacesAfterwards, 225 TransitionsBefore, 93 TransitionsAfterwards, 7144 CoEnabledTransitionPairs, 8 FixpointIterations, 120 TrivialSequentialCompositions, 117 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 256 TotalNumberOfCompositions, 36312 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12431, independent: 11700, independent conditional: 0, independent unconditional: 11700, dependent: 533, dependent conditional: 0, dependent unconditional: 533, unknown: 198, unknown conditional: 0, unknown unconditional: 198] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4972, independent: 4841, independent conditional: 0, independent unconditional: 4841, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 19, unknown conditional: 0, unknown unconditional: 19] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4972, independent: 4706, independent conditional: 0, independent unconditional: 4706, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 266, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 19, unknown conditional: 0, unknown unconditional: 19] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45278, independent: 2082, independent conditional: 0, independent unconditional: 2082, dependent: 3607, dependent conditional: 0, dependent unconditional: 3607, unknown: 39590, unknown conditional: 0, unknown unconditional: 39590] ], Cache Queries: [ total: 12431, independent: 6859, independent conditional: 0, independent unconditional: 6859, dependent: 421, dependent conditional: 0, dependent unconditional: 421, unknown: 5151, unknown conditional: 0, unknown unconditional: 5151] , Statistics on independence cache: Total cache size (in pairs): 891, Positive cache size: 841, Positive conditional cache size: 0, Positive unconditional cache size: 841, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 18, Unknown conditional cache size: 0, Unknown unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1675. Possible FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={-2147483648:24}, d={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=0, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, d={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=1, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, my_drv_probe(&data)=0, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1723] 0 data->shared.a = 3 VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1726] 0 data->shared.b = 3 VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, dev={-2147483648:24}, t1={3:0}, t2={4:0}] [L1729] EXPR 0 data->shared.a [L1729] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, dev={-2147483648:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1744]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 241 locations, 63 error locations. Started 1 CEGAR loops. OverallTime: 852.5s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 68.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 765.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1356 SdHoareTripleChecker+Valid, 67.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1356 mSDsluCounter, 491 SdHoareTripleChecker+Invalid, 63.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 88 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2927 IncrementalHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 311 mSDtfsCounter, 2927 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5657occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 1397 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 101 ConstructedInterpolants, 7 QuantifiedInterpolants, 1323 SizeOfPredicates, 95 NumberOfNonLiveVariables, 3086 ConjunctsInSsa, 225 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 02:07:12,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55b1ad73-88b1-47f9-9b1a-54239ebcf35f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample