./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.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_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- 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 07:00:06,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:00:06,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:00:06,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:00:06,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:00:06,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:00:06,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:00:06,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:00:06,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:00:06,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:00:06,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:00:06,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:00:06,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:00:06,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:00:06,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:00:06,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:00:06,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:00:06,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:00:06,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:00:06,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:00:06,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:00:06,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:00:06,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:00:06,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:00:06,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:00:06,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:00:06,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:00:06,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:00:06,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:00:06,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:00:06,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:00:06,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:00:06,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:00:06,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:00:06,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:00:06,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:00:06,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:00:06,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:00:06,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:00:06,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:00:06,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:00:06,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 07:00:06,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:00:06,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:00:06,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:00:06,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:00:06,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:00:06,841 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:00:06,841 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:00:06,841 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:00:06,841 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:00:06,842 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:00:06,842 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:00:06,842 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:00:06,842 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:00:06,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:00:06,843 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:00:06,843 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:00:06,843 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:00:06,843 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:00:06,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:00:06,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:00:06,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:00:06,845 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:00:06,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:00:06,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:00:06,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:00:06,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:00:06,846 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:00:06,846 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:00:06,847 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:00:06,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:00:06,847 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:00:06,847 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:00:06,847 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:00:06,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:00:06,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:00:06,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:00:06,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:00:06,849 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:00:06,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:00:06,849 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:00:06,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:00:06,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:00:06,850 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_bdbf096e-2004-45c0-a3c8-4934da7dda09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-11-19 07:00:07,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:00:07,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:00:07,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:00:07,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:00:07,223 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:00:07,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-19 07:00:07,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/47ff12a63/b6723bd3e0364126b14e0caae5773da4/FLAG54d1f6fdf [2022-11-19 07:00:07,956 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:00:07,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-19 07:00:07,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/47ff12a63/b6723bd3e0364126b14e0caae5773da4/FLAG54d1f6fdf [2022-11-19 07:00:08,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/47ff12a63/b6723bd3e0364126b14e0caae5773da4 [2022-11-19 07:00:08,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:00:08,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:00:08,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:00:08,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:00:08,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:00:08,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:00:08" (1/1) ... [2022-11-19 07:00:08,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d4093d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:08, skipping insertion in model container [2022-11-19 07:00:08,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:00:08" (1/1) ... [2022-11-19 07:00:08,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:00:08,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:00:08,629 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_bdbf096e-2004-45c0-a3c8-4934da7dda09/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-19 07:00:08,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:00:08,650 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 07:00:08,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2397d5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:08, skipping insertion in model container [2022-11-19 07:00:08,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:00:08,652 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-19 07:00:08,654 INFO L158 Benchmark]: Toolchain (without parser) took 338.72ms. Allocated memory is still 132.1MB. Free memory was 100.3MB in the beginning and 106.9MB in the end (delta: -6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 07:00:08,655 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:00:08,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.20ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 106.9MB in the end (delta: -6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 07:00:08,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.20ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 106.9MB in the end (delta: -6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 215]: 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_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- 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 07:00:11,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:00:11,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:00:11,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:00:11,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:00:11,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:00:11,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:00:11,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:00:11,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:00:11,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:00:11,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:00:11,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:00:11,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:00:11,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:00:11,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:00:11,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:00:11,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:00:11,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:00:11,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:00:11,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:00:11,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:00:11,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:00:11,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:00:11,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:00:11,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:00:11,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:00:11,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:00:11,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:00:11,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:00:11,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:00:11,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:00:11,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:00:11,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:00:11,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:00:11,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:00:11,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:00:11,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:00:11,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:00:11,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:00:11,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:00:11,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:00:11,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-19 07:00:11,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:00:11,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:00:11,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:00:11,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:00:11,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:00:11,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:00:11,270 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:00:11,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:00:11,271 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:00:11,271 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:00:11,272 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:00:11,272 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:00:11,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:00:11,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:00:11,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:00:11,275 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:00:11,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:00:11,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:00:11,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:00:11,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:00:11,276 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:00:11,276 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:00:11,276 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:00:11,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:00:11,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:00:11,277 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:00:11,277 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:00:11,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:00:11,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:00:11,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:00:11,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:00:11,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:00:11,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:00:11,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:00:11,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:00:11,280 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:00:11,281 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:00:11,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:00:11,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:00:11,281 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_bdbf096e-2004-45c0-a3c8-4934da7dda09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-11-19 07:00:11,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:00:11,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:00:11,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:00:11,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:00:11,817 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:00:11,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-19 07:00:11,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/ab46a91ed/b48e9305000a4d148ef6772a480c61f4/FLAG4c04e1b84 [2022-11-19 07:00:12,526 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:00:12,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-19 07:00:12,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/ab46a91ed/b48e9305000a4d148ef6772a480c61f4/FLAG4c04e1b84 [2022-11-19 07:00:12,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/data/ab46a91ed/b48e9305000a4d148ef6772a480c61f4 [2022-11-19 07:00:12,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:00:12,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:00:12,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:00:12,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:00:12,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:00:12,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:00:12" (1/1) ... [2022-11-19 07:00:12,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6177d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:12, skipping insertion in model container [2022-11-19 07:00:12,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:00:12" (1/1) ... [2022-11-19 07:00:12,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:00:13,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:00:13,316 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_bdbf096e-2004-45c0-a3c8-4934da7dda09/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-19 07:00:13,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:00:13,343 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 07:00:13,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:00:13,383 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_bdbf096e-2004-45c0-a3c8-4934da7dda09/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-19 07:00:13,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:00:13,394 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:00:13,436 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_bdbf096e-2004-45c0-a3c8-4934da7dda09/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-19 07:00:13,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:00:13,460 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:00:13,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13 WrapperNode [2022-11-19 07:00:13,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:00:13,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:00:13,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:00:13,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:00:13,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,520 INFO L138 Inliner]: procedures = 28, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 446 [2022-11-19 07:00:13,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:00:13,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:00:13,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:00:13,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:00:13,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,569 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:00:13,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:00:13,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:00:13,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:00:13,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (1/1) ... [2022-11-19 07:00:13,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:00:13,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:00:13,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:00:13,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:00:13,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:00:13,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:00:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:00:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 07:00:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-19 07:00:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-19 07:00:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-19 07:00:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-19 07:00:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-19 07:00:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-19 07:00:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-19 07:00:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-19 07:00:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:00:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:00:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:00:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:00:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:00:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:00:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:00:13,681 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 07:00:13,945 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:00:13,948 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:00:15,271 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:00:15,705 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:00:15,706 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 07:00:15,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:00:15 BoogieIcfgContainer [2022-11-19 07:00:15,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:00:15,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:00:15,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:00:15,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:00:15,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:00:12" (1/3) ... [2022-11-19 07:00:15,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546d49ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:00:15, skipping insertion in model container [2022-11-19 07:00:15,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:00:13" (2/3) ... [2022-11-19 07:00:15,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546d49ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:00:15, skipping insertion in model container [2022-11-19 07:00:15,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:00:15" (3/3) ... [2022-11-19 07:00:15,732 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2022-11-19 07:00:15,755 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:00:15,756 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-11-19 07:00:15,756 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:00:15,954 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-19 07:00:16,013 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:00:16,027 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 394 transitions, 820 flow [2022-11-19 07:00:16,034 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 394 transitions, 820 flow [2022-11-19 07:00:16,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 394 transitions, 820 flow [2022-11-19 07:00:16,258 INFO L130 PetriNetUnfolder]: 37/390 cut-off events. [2022-11-19 07:00:16,259 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-19 07:00:16,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 390 events. 37/390 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 456 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 331. Up to 8 conditions per place. [2022-11-19 07:00:16,280 INFO L119 LiptonReduction]: Number of co-enabled transitions 10000 [2022-11-19 07:01:23,467 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 157 DAG size of output: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:01:34,349 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 163 DAG size of output: 162 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:01:38,211 INFO L134 LiptonReduction]: Checked pairs total: 13340 [2022-11-19 07:01:38,211 INFO L136 LiptonReduction]: Total number of compositions: 452 [2022-11-19 07:01:38,222 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 87 transitions, 206 flow [2022-11-19 07:01:39,217 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15555 states, 9553 states have (on average 7.390243902439025) internal successors, (70599), 15554 states have internal predecessors, (70599), 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 07:01:39,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:01:39,281 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;@7269a9a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:01:39,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-11-19 07:01:39,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 15555 states, 9553 states have (on average 7.390243902439025) internal successors, (70599), 15554 states have internal predecessors, (70599), 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 07:01:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:01:39,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:39,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:01:39,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-11-19 07:01:39,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:39,398 INFO L85 PathProgramCache]: Analyzing trace with hash 64567, now seen corresponding path program 1 times [2022-11-19 07:01:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:01:39,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801623781] [2022-11-19 07:01:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:39,430 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 07:01:39,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:01:39,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:39,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:39,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:39,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:40,105 INFO L321 Elim1Store]: treesize reduction 150, result has 29.6 percent of original size [2022-11-19 07:01:40,106 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 4 case distinctions, treesize of input 18 treesize of output 70 [2022-11-19 07:01:40,162 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 07:01:40,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:40,164 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:01:40,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801623781] [2022-11-19 07:01:40,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801623781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:40,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:40,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:01:40,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124972060] [2022-11-19 07:01:40,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:40,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:01:40,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:01:40,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:01:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:01:40,248 INFO L87 Difference]: Start difference. First operand has 15555 states, 9553 states have (on average 7.390243902439025) internal successors, (70599), 15554 states have internal predecessors, (70599), 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 07:01:41,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:41,605 INFO L93 Difference]: Finished difference Result 15550 states and 70594 transitions. [2022-11-19 07:01:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:01:41,608 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 07:01:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:42,049 INFO L225 Difference]: With dead ends: 15550 [2022-11-19 07:01:42,058 INFO L226 Difference]: Without dead ends: 15550 [2022-11-19 07:01:42,060 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 07:01:42,064 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:42,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:01:42,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15550 states. [2022-11-19 07:01:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15550 to 15550. [2022-11-19 07:01:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15550 states, 9553 states have (on average 7.3897205066471265) internal successors, (70594), 15549 states have internal predecessors, (70594), 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 07:01:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15550 states to 15550 states and 70594 transitions. [2022-11-19 07:01:43,775 INFO L78 Accepts]: Start accepts. Automaton has 15550 states and 70594 transitions. Word has length 2 [2022-11-19 07:01:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:43,776 INFO L495 AbstractCegarLoop]: Abstraction has 15550 states and 70594 transitions. [2022-11-19 07:01:43,776 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 07:01:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 15550 states and 70594 transitions. [2022-11-19 07:01:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:01:43,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:43,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:01:43,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:44,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:44,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-11-19 07:01:44,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash 64568, now seen corresponding path program 1 times [2022-11-19 07:01:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:01:44,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072069791] [2022-11-19 07:01:44,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:44,010 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 07:01:44,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:01:44,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:44,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:44,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:01:44,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:44,516 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-11-19 07:01:44,517 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-11-19 07:01:44,699 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 07:01:44,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:44,700 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:01:44,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072069791] [2022-11-19 07:01:44,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072069791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:44,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:44,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:01:44,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517672469] [2022-11-19 07:01:44,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:44,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:01:44,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:01:44,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:01:44,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:01:44,706 INFO L87 Difference]: Start difference. First operand 15550 states and 70594 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 07:01:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:47,166 INFO L93 Difference]: Finished difference Result 31095 states and 141183 transitions. [2022-11-19 07:01:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:01:47,168 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 07:01:47,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:47,621 INFO L225 Difference]: With dead ends: 31095 [2022-11-19 07:01:47,621 INFO L226 Difference]: Without dead ends: 31095 [2022-11-19 07:01:47,623 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 07:01:47,628 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:47,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 07:01:47,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31095 states. [2022-11-19 07:01:48,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31095 to 15554. [2022-11-19 07:01:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15554 states, 9557 states have (on average 7.387673956262425) internal successors, (70604), 15553 states have internal predecessors, (70604), 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 07:01:48,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15554 states to 15554 states and 70604 transitions. [2022-11-19 07:01:48,922 INFO L78 Accepts]: Start accepts. Automaton has 15554 states and 70604 transitions. Word has length 2 [2022-11-19 07:01:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:48,923 INFO L495 AbstractCegarLoop]: Abstraction has 15554 states and 70604 transitions. [2022-11-19 07:01:48,923 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 07:01:48,924 INFO L276 IsEmpty]: Start isEmpty. Operand 15554 states and 70604 transitions. [2022-11-19 07:01:48,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 07:01:48,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:48,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 07:01:48,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:49,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:49,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-11-19 07:01:49,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:49,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2009043, now seen corresponding path program 1 times [2022-11-19 07:01:49,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:01:49,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425920448] [2022-11-19 07:01:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:49,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:01:49,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:01:49,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:49,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:01:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:49,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 07:01:49,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:49,546 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-11-19 07:01:49,547 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-11-19 07:01:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:49,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:01:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:50,191 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:01:50,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425920448] [2022-11-19 07:01:50,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425920448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:01:50,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [574317795] [2022-11-19 07:01:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:50,193 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:01:50,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:01:50,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:01:50,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-19 07:01:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:50,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 07:01:50,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:50,709 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-11-19 07:01:50,709 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-11-19 07:01:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:50,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:01:50,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:50,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [574317795] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:01:50,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517046758] [2022-11-19 07:01:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:50,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:50,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:50,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:50,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:01:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:51,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 07:01:51,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:51,322 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-11-19 07:01:51,323 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 4 case distinctions, treesize of input 20 treesize of output 62 [2022-11-19 07:01:51,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:51,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:01:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:51,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517046758] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:01:51,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:01:51,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 07:01:51,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625396532] [2022-11-19 07:01:51,606 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:01:51,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:01:51,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:01:51,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:01:51,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:51,609 INFO L87 Difference]: Start difference. First operand 15554 states and 70604 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2022-11-19 07:01:54,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:58,848 INFO L93 Difference]: Finished difference Result 62189 states and 282371 transitions. [2022-11-19 07:01:58,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:01:58,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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 3 [2022-11-19 07:01:58,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:59,778 INFO L225 Difference]: With dead ends: 62189 [2022-11-19 07:01:59,778 INFO L226 Difference]: Without dead ends: 62189 [2022-11-19 07:01:59,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:01:59,780 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 712 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:59,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 0 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-19 07:02:00,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62189 states. [2022-11-19 07:02:01,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62189 to 15566. [2022-11-19 07:02:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15566 states, 9569 states have (on average 7.381544571010555) internal successors, (70634), 15565 states have internal predecessors, (70634), 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 07:02:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15566 states to 15566 states and 70634 transitions. [2022-11-19 07:02:01,814 INFO L78 Accepts]: Start accepts. Automaton has 15566 states and 70634 transitions. Word has length 3 [2022-11-19 07:02:01,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:02:01,821 INFO L495 AbstractCegarLoop]: Abstraction has 15566 states and 70634 transitions. [2022-11-19 07:02:01,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2022-11-19 07:02:01,821 INFO L276 IsEmpty]: Start isEmpty. Operand 15566 states and 70634 transitions. [2022-11-19 07:02:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:02:01,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:02:01,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:02:01,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:02:02,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:02:02,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-11-19 07:02:02,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:02:02,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-11-19 07:02:02,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:02:02,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1934226080, now seen corresponding path program 1 times [2022-11-19 07:02:02,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:02:02,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838228222] [2022-11-19 07:02:02,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:02:02,437 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 07:02:02,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:02:02,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:02:02,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 (7)] Waiting until timeout for monitored process [2022-11-19 07:02:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:02:02,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-19 07:02:02,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:02:02,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:02,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:02,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:02,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:02,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:02,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:02,976 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-11-19 07:02:02,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 41 [2022-11-19 07:02:03,075 INFO L321 Elim1Store]: treesize reduction 26, result has 16.1 percent of original size [2022-11-19 07:02:03,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 88 [2022-11-19 07:02:03,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:03,478 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 [2022-11-19 07:02:03,490 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 [2022-11-19 07:02:03,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:03,588 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 [2022-11-19 07:02:03,619 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 07:02:03,619 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 [2022-11-19 07:02:03,687 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-19 07:02:03,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-19 07:02:03,729 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 07:02:03,729 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 12 treesize of output 18 [2022-11-19 07:02:03,814 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 07:02:03,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:02:03,814 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:02:03,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838228222] [2022-11-19 07:02:03,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838228222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:02:03,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:02:03,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:02:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448765561] [2022-11-19 07:02:03,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:02:03,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:02:03,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:02:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:02:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:02:03,816 INFO L87 Difference]: Start difference. First operand 15566 states and 70634 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-19 07:02:04,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:02:04,315 INFO L93 Difference]: Finished difference Result 15569 states and 70641 transitions. [2022-11-19 07:02:04,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:02:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 [2022-11-19 07:02:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:02:04,404 INFO L225 Difference]: With dead ends: 15569 [2022-11-19 07:02:04,404 INFO L226 Difference]: Without dead ends: 15569 [2022-11-19 07:02:04,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:02:04,405 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 150 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:02:04,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 150 Unchecked, 0.4s Time] [2022-11-19 07:02:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15569 states. [2022-11-19 07:02:05,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15569 to 15569. [2022-11-19 07:02:05,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15569 states, 9572 states have (on average 7.379962390305057) internal successors, (70641), 15568 states have internal predecessors, (70641), 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 07:02:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15569 states to 15569 states and 70641 transitions. [2022-11-19 07:02:05,276 INFO L78 Accepts]: Start accepts. Automaton has 15569 states and 70641 transitions. Word has length 5 [2022-11-19 07:02:05,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:02:05,277 INFO L495 AbstractCegarLoop]: Abstraction has 15569 states and 70641 transitions. [2022-11-19 07:02:05,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-19 07:02:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 15569 states and 70641 transitions. [2022-11-19 07:02:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:02:05,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:02:05,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:02:05,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:02:05,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:02:05,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-11-19 07:02:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:02:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1934226081, now seen corresponding path program 1 times [2022-11-19 07:02:05,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:02:05,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935209469] [2022-11-19 07:02:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:02:05,494 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 07:02:05,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:02:05,495 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 07:02:05,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbf096e-2004-45c0-a3c8-4934da7dda09/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 (8)] Waiting until timeout for monitored process [2022-11-19 07:02:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:02:05,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 07:02:05,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:02:05,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:05,866 INFO L321 Elim1Store]: treesize reduction 178, result has 18.7 percent of original size [2022-11-19 07:02:05,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 81 [2022-11-19 07:02:06,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:06,838 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-19 07:02:06,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 52 [2022-11-19 07:02:07,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:02:07,973 INFO L321 Elim1Store]: treesize reduction 66, result has 49.2 percent of original size [2022-11-19 07:02:07,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 83 treesize of output 146 [2022-11-19 07:02:44,573 WARN L233 SmtUtils]: Spent 14.98s on a formula simplification. DAG size of input: 314 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:02:45,480 INFO L321 Elim1Store]: treesize reduction 64, result has 70.4 percent of original size [2022-11-19 07:02:45,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 136 treesize of output 274 [2022-11-19 07:08:42,377 WARN L233 SmtUtils]: Spent 9.41s on a formula simplification that was a NOOP. DAG size: 2915 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)