./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- 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-8393723 [2022-11-19 08:20:35,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:20:35,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:20:35,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:20:35,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:20:35,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:20:35,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:20:35,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:20:35,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:20:35,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:20:35,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:20:35,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:20:35,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:20:35,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:20:35,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:20:35,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:20:35,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:20:35,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:20:35,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:20:35,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:20:35,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:20:35,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:20:35,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:20:35,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:20:35,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:20:35,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:20:35,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:20:35,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:20:35,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:20:35,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:20:35,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:20:35,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:20:35,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:20:35,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:20:35,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:20:35,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:20:35,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:20:35,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:20:35,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:20:35,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:20:35,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:20:35,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:20:35,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:20:35,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:20:35,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:20:35,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:20:35,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:20:35,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:20:35,821 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:20:35,822 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:20:35,822 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:20:35,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:20:35,823 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:20:35,823 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:20:35,823 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:20:35,824 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:20:35,824 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:20:35,824 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:20:35,825 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:20:35,825 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:20:35,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:20:35,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:20:35,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:20:35,827 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:20:35,827 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:20:35,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:20:35,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:20:35,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:20:35,828 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:20:35,829 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:20:35,829 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:20:35,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:20:35,830 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:20:35,830 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:20:35,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:20:35,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:20:35,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:20:35,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:20:35,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:20:35,832 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:20:35,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:20:35,833 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:20:35,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:20:35,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:20:35,834 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-19 08:20:36,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:20:36,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:20:36,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:20:36,169 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:20:36,170 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:20:36,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-19 08:20:36,254 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/d8e2e9682/0867c19ca31f4ff1bff455f197714e6e/FLAGfbdeafcf7 [2022-11-19 08:20:36,794 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:20:36,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-19 08:20:36,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/d8e2e9682/0867c19ca31f4ff1bff455f197714e6e/FLAGfbdeafcf7 [2022-11-19 08:20:37,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/d8e2e9682/0867c19ca31f4ff1bff455f197714e6e [2022-11-19 08:20:37,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:20:37,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:20:37,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:37,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:20:37,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:20:37,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:37" (1/1) ... [2022-11-19 08:20:37,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8993a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:37, skipping insertion in model container [2022-11-19 08:20:37,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:37" (1/1) ... [2022-11-19 08:20:37,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:20:37,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:20:37,495 WARN L234 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-19 08:20:37,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:37,529 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) [2022-11-19 08:20:37,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@efb522d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:37, skipping insertion in model container [2022-11-19 08:20:37,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:37,531 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-19 08:20:37,533 INFO L158 Benchmark]: Toolchain (without parser) took 399.89ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 75.4MB in the end (delta: -15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:20:37,534 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:20:37,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.12ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 75.4MB in the end (delta: -15.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:20:37,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.12ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 75.4MB in the end (delta: -15.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 183]: 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- 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-8393723 [2022-11-19 08:20:39,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:20:39,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:20:39,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:20:39,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:20:39,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:20:39,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:20:39,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:20:39,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:20:39,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:20:39,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:20:39,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:20:39,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:20:39,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:20:39,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:20:39,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:20:39,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:20:39,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:20:39,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:20:39,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:20:39,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:20:39,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:20:39,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:20:39,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:20:39,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:20:39,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:20:39,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:20:39,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:20:39,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:20:39,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:20:39,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:20:39,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:20:39,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:20:39,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:20:39,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:20:39,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:20:39,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:20:39,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:20:39,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:20:39,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:20:39,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:20:39,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-19 08:20:39,851 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:20:39,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:20:39,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:20:39,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:20:39,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:20:39,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:20:39,855 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:20:39,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:20:39,856 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:20:39,856 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:20:39,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:20:39,858 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:20:39,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:20:39,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:20:39,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:20:39,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:20:39,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:20:39,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:20:39,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:20:39,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:20:39,862 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:20:39,862 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:20:39,862 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:20:39,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:20:39,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:20:39,863 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:20:39,863 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:20:39,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:20:39,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:20:39,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:20:39,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:20:39,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:20:39,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:20:39,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:20:39,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:20:39,867 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:20:39,867 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:20:39,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:20:39,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:20:39,868 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-19 08:20:40,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:20:40,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:20:40,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:20:40,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:20:40,333 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:20:40,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-19 08:20:40,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/64cda829b/993c6df35b6a46c2a270fb72fb02513c/FLAGcf5c282de [2022-11-19 08:20:40,939 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:20:40,939 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-19 08:20:40,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/64cda829b/993c6df35b6a46c2a270fb72fb02513c/FLAGcf5c282de [2022-11-19 08:20:41,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/data/64cda829b/993c6df35b6a46c2a270fb72fb02513c [2022-11-19 08:20:41,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:20:41,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:20:41,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:41,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:20:41,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:20:41,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e5dc0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41, skipping insertion in model container [2022-11-19 08:20:41,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:20:41,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:20:41,543 WARN L234 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-19 08:20:41,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:41,593 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 08:20:41,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:20:41,635 WARN L234 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-19 08:20:41,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:41,653 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:20:41,682 WARN L234 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_1fb1b00a-5300-438b-b5b8-beab972ac3b8/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-19 08:20:41,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:41,704 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:20:41,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41 WrapperNode [2022-11-19 08:20:41,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:41,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:20:41,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:20:41,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:20:41,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,773 INFO L138 Inliner]: procedures = 31, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 275 [2022-11-19 08:20:41,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:20:41,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:20:41,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:20:41,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:20:41,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,847 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:20:41,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:20:41,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:20:41,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:20:41,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (1/1) ... [2022-11-19 08:20:41,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:20:41,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:41,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:20:41,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:20:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:20:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:20:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:20:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 08:20:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-19 08:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-19 08:20:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-19 08:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-19 08:20:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-19 08:20:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-19 08:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-19 08:20:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-19 08:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-19 08:20:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-19 08:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-19 08:20:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-19 08:20:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:20:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:20:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:20:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:20:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:20:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:20:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:20:41,952 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:20:42,158 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:20:42,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:20:43,101 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:20:43,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:20:43,334 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-19 08:20:43,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:43 BoogieIcfgContainer [2022-11-19 08:20:43,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:20:43,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:20:43,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:20:43,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:20:43,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:20:41" (1/3) ... [2022-11-19 08:20:43,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1863ca8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:43, skipping insertion in model container [2022-11-19 08:20:43,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:41" (2/3) ... [2022-11-19 08:20:43,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1863ca8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:43, skipping insertion in model container [2022-11-19 08:20:43,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:43" (3/3) ... [2022-11-19 08:20:43,345 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-19 08:20:43,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:20:43,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-19 08:20:43,364 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:20:43,539 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-19 08:20:43,603 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:20:43,617 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 292 transitions, 656 flow [2022-11-19 08:20:43,622 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 292 transitions, 656 flow [2022-11-19 08:20:43,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 292 transitions, 656 flow [2022-11-19 08:20:43,796 INFO L130 PetriNetUnfolder]: 18/260 cut-off events. [2022-11-19 08:20:43,796 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-19 08:20:43,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 260 events. 18/260 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 461 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 219. Up to 3 conditions per place. [2022-11-19 08:20:43,816 INFO L119 LiptonReduction]: Number of co-enabled transitions 11976 [2022-11-19 08:21:08,065 INFO L134 LiptonReduction]: Checked pairs total: 60326 [2022-11-19 08:21:08,066 INFO L136 LiptonReduction]: Total number of compositions: 234 [2022-11-19 08:21:08,074 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131 places, 121 transitions, 314 flow [2022-11-19 08:21:14,142 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 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) [2022-11-19 08:21:14,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:21:14,171 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;@2f260119, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:21:14,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2022-11-19 08:21:14,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 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) [2022-11-19 08:21:14,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:21:14,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:14,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:21:14,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-19 08:21:14,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:14,366 INFO L85 PathProgramCache]: Analyzing trace with hash 45851, now seen corresponding path program 1 times [2022-11-19 08:21:14,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:21:14,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949099445] [2022-11-19 08:21:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:14,378 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 [2022-11-19 08:21:14,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:21:14,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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) [2022-11-19 08:21:14,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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 [2022-11-19 08:21:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:14,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:21:14,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:21:14,619 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-19 08:21:14,620 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 2 case distinctions, treesize of input 12 treesize of output 33 [2022-11-19 08:21:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:14,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:21:14,664 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:21:14,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949099445] [2022-11-19 08:21:14,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949099445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:14,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:14,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:21:14,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049039720] [2022-11-19 08:21:14,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:14,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:21:14,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:21:14,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:21:14,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:14,980 INFO L87 Difference]: Start difference. First operand has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:21:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:19,135 INFO L93 Difference]: Finished difference Result 113234 states and 627784 transitions. [2022-11-19 08:21:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:21:19,138 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 [2022-11-19 08:21:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:21,023 INFO L225 Difference]: With dead ends: 113234 [2022-11-19 08:21:21,023 INFO L226 Difference]: Without dead ends: 113234 [2022-11-19 08:21:21,024 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 [2022-11-19 08:21:21,027 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 83 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:21,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 34 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:21:21,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113234 states. [2022-11-19 08:21:27,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113234 to 113234. [2022-11-19 08:21:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113234 states, 108024 states have (on average 5.811523365178108) internal successors, (627784), 113233 states have internal predecessors, (627784), 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) [2022-11-19 08:21:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113234 states to 113234 states and 627784 transitions. [2022-11-19 08:21:30,163 INFO L78 Accepts]: Start accepts. Automaton has 113234 states and 627784 transitions. Word has length 2 [2022-11-19 08:21:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:30,164 INFO L495 AbstractCegarLoop]: Abstraction has 113234 states and 627784 transitions. [2022-11-19 08:21:30,164 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) [2022-11-19 08:21:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 113234 states and 627784 transitions. [2022-11-19 08:21:30,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:21:30,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:30,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:21:30,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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 [2022-11-19 08:21:30,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:21:30,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-19 08:21:30,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:30,372 INFO L85 PathProgramCache]: Analyzing trace with hash 45852, now seen corresponding path program 1 times [2022-11-19 08:21:30,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:21:30,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961355290] [2022-11-19 08:21:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:30,374 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 [2022-11-19 08:21:30,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:21:30,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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) [2022-11-19 08:21:30,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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 [2022-11-19 08:21:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:30,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:21:30,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:21:30,545 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-19 08:21:30,546 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-19 08:21:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:30,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:21:30,581 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:21:30,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961355290] [2022-11-19 08:21:30,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961355290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:30,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:30,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:21:30,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901348441] [2022-11-19 08:21:30,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:21:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:21:30,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:21:30,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:30,584 INFO L87 Difference]: Start difference. First operand 113234 states and 627784 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) [2022-11-19 08:21:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:32,890 INFO L93 Difference]: Finished difference Result 113248 states and 627812 transitions. [2022-11-19 08:21:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:21:32,892 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 [2022-11-19 08:21:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:34,879 INFO L225 Difference]: With dead ends: 113248 [2022-11-19 08:21:34,879 INFO L226 Difference]: Without dead ends: 113248 [2022-11-19 08:21:34,879 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 [2022-11-19 08:21:34,881 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:34,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:21:35,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113248 states. [2022-11-19 08:21:40,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113248 to 113235. [2022-11-19 08:21:40,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113235 states, 108025 states have (on average 5.811506595695441) internal successors, (627788), 113234 states have internal predecessors, (627788), 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) [2022-11-19 08:21:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113235 states to 113235 states and 627788 transitions. [2022-11-19 08:21:41,454 INFO L78 Accepts]: Start accepts. Automaton has 113235 states and 627788 transitions. Word has length 2 [2022-11-19 08:21:41,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:41,454 INFO L495 AbstractCegarLoop]: Abstraction has 113235 states and 627788 transitions. [2022-11-19 08:21:41,454 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) [2022-11-19 08:21:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 113235 states and 627788 transitions. [2022-11-19 08:21:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:21:41,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:41,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:21:41,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-19 08:21:41,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:21:41,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-19 08:21:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash 46029, now seen corresponding path program 1 times [2022-11-19 08:21:41,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:21:41,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376058504] [2022-11-19 08:21:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:41,669 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 [2022-11-19 08:21:41,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:21:41,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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) [2022-11-19 08:21:41,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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 [2022-11-19 08:21:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:41,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:21:41,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:21:41,811 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2022-11-19 08:21:41,811 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 3 case distinctions, treesize of input 22 treesize of output 33 [2022-11-19 08:21:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:41,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:21:41,839 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:21:41,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376058504] [2022-11-19 08:21:41,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376058504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:41,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:41,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:21:41,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172703460] [2022-11-19 08:21:41,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:41,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:21:41,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:21:41,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:21:41,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:41,841 INFO L87 Difference]: Start difference. First operand 113235 states and 627788 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) [2022-11-19 08:21:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:44,215 INFO L93 Difference]: Finished difference Result 87343 states and 472125 transitions. [2022-11-19 08:21:44,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:21:44,216 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 [2022-11-19 08:21:44,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:46,085 INFO L225 Difference]: With dead ends: 87343 [2022-11-19 08:21:46,086 INFO L226 Difference]: Without dead ends: 87343 [2022-11-19 08:21:46,086 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 [2022-11-19 08:21:46,087 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 87 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:46,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 34 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:21:46,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87343 states. [2022-11-19 08:21:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87343 to 86009. [2022-11-19 08:21:50,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86009 states, 82400 states have (on average 5.678410194174758) internal successors, (467901), 86008 states have internal predecessors, (467901), 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) [2022-11-19 08:21:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86009 states to 86009 states and 467901 transitions. [2022-11-19 08:21:50,558 INFO L78 Accepts]: Start accepts. Automaton has 86009 states and 467901 transitions. Word has length 2 [2022-11-19 08:21:50,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:50,558 INFO L495 AbstractCegarLoop]: Abstraction has 86009 states and 467901 transitions. [2022-11-19 08:21:50,559 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) [2022-11-19 08:21:50,559 INFO L276 IsEmpty]: Start isEmpty. Operand 86009 states and 467901 transitions. [2022-11-19 08:21:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:21:50,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:50,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:21:50,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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 [2022-11-19 08:21:50,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:21:50,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-19 08:21:50,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:50,760 INFO L85 PathProgramCache]: Analyzing trace with hash 46030, now seen corresponding path program 1 times [2022-11-19 08:21:50,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:21:50,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887456480] [2022-11-19 08:21:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:50,761 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 [2022-11-19 08:21:50,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:21:50,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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) [2022-11-19 08:21:50,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb1b00a-5300-438b-b5b8-beab972ac3b8/bin/utaipan-I9t0OCRTmS/mathsat -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 [2022-11-19 08:21:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:50,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:21:50,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:21:50,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:21:50,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:21:50,920 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:21:50,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 20 [2022-11-19 08:21:50,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 08:21:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:50,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:21:50,971 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:21:50,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887456480] [2022-11-19 08:21:50,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887456480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:50,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:50,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:21:50,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417449046] [2022-11-19 08:21:50,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:50,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:21:50,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:21:50,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:21:50,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:50,973 INFO L87 Difference]: Start difference. First operand 86009 states and 467901 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) [2022-11-19 08:21:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:52,917 INFO L93 Difference]: Finished difference Result 86009 states and 467900 transitions. [2022-11-19 08:21:52,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:21:52,918 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 [2022-11-19 08:21:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:53,540 INFO L225 Difference]: With dead ends: 86009 [2022-11-19 08:21:53,541 INFO L226 Difference]: Without dead ends: 86009 [2022-11-19 08:21:53,541 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 [2022-11-19 08:21:53,543 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:53,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 79 Unchecked, 0.2s Time] [2022-11-19 08:21:53,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86009 states.