./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh --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 64bit --witnessprinter.graph.data.programhash 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 --- 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-2329fc7 [2022-12-14 14:57:40,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:57:40,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:57:40,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:57:40,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:57:40,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:57:40,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:57:40,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:57:40,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:57:40,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:57:40,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:57:40,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:57:40,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:57:40,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:57:40,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:57:40,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:57:40,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:57:40,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:57:40,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:57:40,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:57:40,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:57:40,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:57:40,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:57:40,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:57:40,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:57:40,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:57:40,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:57:40,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:57:40,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:57:40,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:57:40,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:57:40,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:57:40,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:57:40,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:57:40,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:57:40,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:57:40,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:57:40,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:57:40,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:57:40,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:57:40,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:57:40,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2022-12-14 14:57:40,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:57:40,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:57:40,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:57:40,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:57:40,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:57:40,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:57:40,927 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:57:40,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:57:40,928 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:57:40,928 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:57:40,928 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:57:40,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:57:40,928 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:57:40,928 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:57:40,928 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:57:40,929 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:57:40,929 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:57:40,929 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:57:40,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 14:57:40,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 14:57:40,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:57:40,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:57:40,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:57:40,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:57:40,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:57:40,931 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:57:40,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:57:40,931 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:57:40,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:57:40,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:57:40,931 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_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 [2022-12-14 14:57:41,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:57:41,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:57:41,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:57:41,138 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:57:41,139 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:57:41,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2022-12-14 14:57:43,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:57:43,950 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:57:43,951 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2022-12-14 14:57:43,968 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data/9e4301bad/9e5cac7b1a84497b9502970abd78c1e6/FLAG041f1d88e [2022-12-14 14:57:44,298 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data/9e4301bad/9e5cac7b1a84497b9502970abd78c1e6 [2022-12-14 14:57:44,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:57:44,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:57:44,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:57:44,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:57:44,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:57:44,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:57:44" (1/1) ... [2022-12-14 14:57:44,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33eb020e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:44, skipping insertion in model container [2022-12-14 14:57:44,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:57:44" (1/1) ... [2022-12-14 14:57:44,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:57:44,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:57:44,737 WARN L623 FunctionHandler]: Unknown extern function dirname [2022-12-14 14:57:44,738 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:57:44,739 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 14:57:44,761 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-14 14:57:44,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:57:44,783 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) [2022-12-14 14:57:44,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@629a4d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:44, skipping insertion in model container [2022-12-14 14:57:44,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:57:44,784 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 14:57:44,785 INFO L158 Benchmark]: Toolchain (without parser) took 474.46ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 93.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:57:44,785 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:57:44,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.64ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 93.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:57:44,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.64ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 93.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1162]: 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_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh --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 64bit --witnessprinter.graph.data.programhash 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 --- 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-2329fc7 [2022-12-14 14:57:46,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:57:46,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:57:46,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:57:46,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:57:46,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:57:46,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:57:46,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:57:46,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:57:46,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:57:46,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:57:46,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:57:46,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:57:46,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:57:46,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:57:46,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:57:46,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:57:46,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:57:46,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:57:46,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:57:46,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:57:46,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:57:46,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:57:46,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:57:46,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:57:46,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:57:46,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:57:46,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:57:46,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:57:46,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:57:46,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:57:46,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:57:46,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:57:46,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:57:46,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:57:46,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:57:46,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:57:46,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:57:46,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:57:46,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:57:46,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:57:46,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2022-12-14 14:57:46,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:57:46,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:57:46,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:57:46,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:57:46,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:57:46,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:57:46,144 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:57:46,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:57:46,144 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:57:46,144 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:57:46,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:57:46,144 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:57:46,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 14:57:46,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 14:57:46,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:57:46,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:57:46,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:57:46,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:57:46,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:57:46,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:57:46,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:57:46,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:57:46,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:57:46,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:57:46,147 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:57:46,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:57:46,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:57:46,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:57:46,148 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_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 [2022-12-14 14:57:46,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:57:46,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:57:46,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:57:46,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:57:46,372 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:57:46,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2022-12-14 14:57:48,966 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:57:49,201 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:57:49,202 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2022-12-14 14:57:49,215 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data/fc8aee8b3/96107b489ca74d8d97fbae5c1d6693ec/FLAG5d702c366 [2022-12-14 14:57:49,225 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/data/fc8aee8b3/96107b489ca74d8d97fbae5c1d6693ec [2022-12-14 14:57:49,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:57:49,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:57:49,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:57:49,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:57:49,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:57:49,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:49,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26030606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49, skipping insertion in model container [2022-12-14 14:57:49,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:49,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:57:49,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:57:49,710 WARN L623 FunctionHandler]: Unknown extern function dirname [2022-12-14 14:57:49,711 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:57:49,711 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 14:57:49,736 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-14 14:57:49,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:57:49,760 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 14:57:49,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:57:49,784 WARN L623 FunctionHandler]: Unknown extern function dirname [2022-12-14 14:57:49,784 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:57:49,785 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 14:57:49,798 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-14 14:57:49,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:57:49,809 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:57:49,835 WARN L623 FunctionHandler]: Unknown extern function dirname [2022-12-14 14:57:49,835 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:57:49,836 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 14:57:49,850 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-14 14:57:49,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:57:49,918 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:57:49,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49 WrapperNode [2022-12-14 14:57:49,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:57:49,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:57:49,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:57:49,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:57:49,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:49,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:49,975 INFO L138 Inliner]: procedures = 350, calls = 111, calls flagged for inlining = 8, calls inlined = 7, statements flattened = 257 [2022-12-14 14:57:49,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:57:49,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:57:49,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:57:49,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:57:49,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:49,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:49,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:49,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:50,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:50,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:50,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:50,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:50,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:57:50,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:57:50,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:57:50,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:57:50,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (1/1) ... [2022-12-14 14:57:50,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:57:50,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:57:50,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:57:50,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:57:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-14 14:57:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 14:57:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 14:57:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:57:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-12-14 14:57:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:57:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 14:57:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 14:57:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:57:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-12-14 14:57:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:57:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:57:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:57:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:57:50,213 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:57:50,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:57:51,031 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:57:51,036 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:57:51,037 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-14 14:57:51,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:57:51 BoogieIcfgContainer [2022-12-14 14:57:51,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:57:51,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:57:51,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:57:51,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:57:51,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:57:49" (1/3) ... [2022-12-14 14:57:51,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f4241c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:57:51, skipping insertion in model container [2022-12-14 14:57:51,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:57:49" (2/3) ... [2022-12-14 14:57:51,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f4241c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:57:51, skipping insertion in model container [2022-12-14 14:57:51,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:57:51" (3/3) ... [2022-12-14 14:57:51,045 INFO L112 eAbstractionObserver]: Analyzing ICFG dirname-1.i [2022-12-14 14:57:51,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:57:51,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 73 error locations. [2022-12-14 14:57:51,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:57:51,093 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;@4ed20b5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:57:51,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2022-12-14 14:57:51,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 102 states have (on average 1.9509803921568627) internal successors, (199), 175 states have internal predecessors, (199), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:57:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:57:51,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:51,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:57:51,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:57:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:51,106 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-12-14 14:57:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:57:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370699923] [2022-12-14 14:57:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:51,119 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 [2022-12-14 14:57:51,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:57:51,120 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:57:51,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 14:57:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:51,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:57:51,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:51,254 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 [2022-12-14 14:57:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:51,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:57:51,267 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:57:51,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370699923] [2022-12-14 14:57:51,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370699923] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:51,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:51,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:57:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908506231] [2022-12-14 14:57:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:51,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:57:51,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:57:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:57:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:57:51,306 INFO L87 Difference]: Start difference. First operand has 178 states, 102 states have (on average 1.9509803921568627) internal successors, (199), 175 states have internal predecessors, (199), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:57:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:51,672 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2022-12-14 14:57:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:57:51,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 14:57:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:51,681 INFO L225 Difference]: With dead ends: 188 [2022-12-14 14:57:51,681 INFO L226 Difference]: Without dead ends: 186 [2022-12-14 14:57:51,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:57:51,684 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 160 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:51,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 144 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:57:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-14 14:57:51,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 170. [2022-12-14 14:57:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 99 states have (on average 1.8484848484848484) internal successors, (183), 167 states have internal predecessors, (183), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:57:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 185 transitions. [2022-12-14 14:57:51,713 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 185 transitions. Word has length 3 [2022-12-14 14:57:51,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:51,713 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 185 transitions. [2022-12-14 14:57:51,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:57:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 185 transitions. [2022-12-14 14:57:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:57:51,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:51,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:57:51,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 14:57:51,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:57:51,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:57:51,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:51,918 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-12-14 14:57:51,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:57:51,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872249259] [2022-12-14 14:57:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:51,921 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 [2022-12-14 14:57:51,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:57:51,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:57:51,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 14:57:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:52,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:57:52,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:52,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:57:52,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:52,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:57:52,098 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:57:52,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872249259] [2022-12-14 14:57:52,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872249259] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:52,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:52,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:57:52,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759210991] [2022-12-14 14:57:52,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:52,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:57:52,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:57:52,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:57:52,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:57:52,100 INFO L87 Difference]: Start difference. First operand 170 states and 185 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:57:52,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:52,555 INFO L93 Difference]: Finished difference Result 169 states and 184 transitions. [2022-12-14 14:57:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:57:52,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 14:57:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:52,557 INFO L225 Difference]: With dead ends: 169 [2022-12-14 14:57:52,557 INFO L226 Difference]: Without dead ends: 169 [2022-12-14 14:57:52,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:57:52,558 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 9 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:52,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 288 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:57:52,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-12-14 14:57:52,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-12-14 14:57:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 99 states have (on average 1.8383838383838385) internal successors, (182), 166 states have internal predecessors, (182), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:57:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 184 transitions. [2022-12-14 14:57:52,564 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 184 transitions. Word has length 3 [2022-12-14 14:57:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:52,564 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 184 transitions. [2022-12-14 14:57:52,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:57:52,564 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 184 transitions. [2022-12-14 14:57:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:57:52,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:52,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:57:52,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 14:57:52,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:57:52,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:57:52,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:52,768 INFO L85 PathProgramCache]: Analyzing trace with hash 889446313, now seen corresponding path program 1 times [2022-12-14 14:57:52,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:57:52,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725243753] [2022-12-14 14:57:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:52,770 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 [2022-12-14 14:57:52,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:57:52,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:57:52,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 14:57:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:52,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:57:52,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:52,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:57:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:52,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:57:52,909 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:57:52,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725243753] [2022-12-14 14:57:52,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725243753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:52,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:52,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:57:52,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738553459] [2022-12-14 14:57:52,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:52,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:57:52,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:57:52,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:57:52,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:57:52,911 INFO L87 Difference]: Start difference. First operand 169 states and 184 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:57:53,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:53,524 INFO L93 Difference]: Finished difference Result 173 states and 188 transitions. [2022-12-14 14:57:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:57:53,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 14:57:53,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:53,525 INFO L225 Difference]: With dead ends: 173 [2022-12-14 14:57:53,526 INFO L226 Difference]: Without dead ends: 173 [2022-12-14 14:57:53,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:57:53,526 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 10 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:53,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 396 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:57:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-12-14 14:57:53,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 171. [2022-12-14 14:57:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 101 states have (on average 1.8217821782178218) internal successors, (184), 168 states have internal predecessors, (184), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:57:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 186 transitions. [2022-12-14 14:57:53,532 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 186 transitions. Word has length 6 [2022-12-14 14:57:53,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:53,533 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 186 transitions. [2022-12-14 14:57:53,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:57:53,533 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 186 transitions. [2022-12-14 14:57:53,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:57:53,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:53,533 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:57:53,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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)] Ended with exit code 0 [2022-12-14 14:57:53,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:57:53,735 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:57:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:53,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1261842348, now seen corresponding path program 1 times [2022-12-14 14:57:53,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:57:53,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531962227] [2022-12-14 14:57:53,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:53,738 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 [2022-12-14 14:57:53,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:57:53,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:57:53,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 14:57:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:53,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:57:53,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:53,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:57:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:53,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:57:54,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:54,439 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:57:54,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531962227] [2022-12-14 14:57:54,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531962227] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:57:54,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [463194093] [2022-12-14 14:57:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:54,440 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:57:54,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:57:54,441 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:57:54,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2022-12-14 14:57:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:54,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:57:54,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:54,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:57:54,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:54,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:57:54,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:54,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [463194093] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:57:54,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877491633] [2022-12-14 14:57:54,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:54,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:57:54,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:57:54,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:57:54,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 14:57:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:54,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:57:54,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:54,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:57:54,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:54,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:57:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:55,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877491633] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:57:55,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:57:55,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 7 [2022-12-14 14:57:55,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964596342] [2022-12-14 14:57:55,225 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:57:55,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:57:55,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:57:55,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:57:55,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:57:55,226 INFO L87 Difference]: Start difference. First operand 171 states and 186 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-12-14 14:57:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:57,904 INFO L93 Difference]: Finished difference Result 177 states and 192 transitions. [2022-12-14 14:57:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:57:57,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 14:57:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:57,906 INFO L225 Difference]: With dead ends: 177 [2022-12-14 14:57:57,906 INFO L226 Difference]: Without dead ends: 177 [2022-12-14 14:57:57,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:57:57,906 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 14 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:57,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 724 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 14:57:57,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-12-14 14:57:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-12-14 14:57:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 108 states have (on average 1.7592592592592593) internal successors, (190), 174 states have internal predecessors, (190), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:57:57,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 192 transitions. [2022-12-14 14:57:57,911 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 192 transitions. Word has length 10 [2022-12-14 14:57:57,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:57,912 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 192 transitions. [2022-12-14 14:57:57,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-12-14 14:57:57,912 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 192 transitions. [2022-12-14 14:57:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 14:57:57,912 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:57,912 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:57:57,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 14:57:58,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 14:57:58,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2022-12-14 14:57:58,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:57:58,515 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:57:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1324461056, now seen corresponding path program 1 times [2022-12-14 14:57:58,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:57:58,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198470085] [2022-12-14 14:57:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:58,518 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 [2022-12-14 14:57:58,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:57:58,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:57:58,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 14:57:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:58,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:57:58,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:58,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:57:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:58,725 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:57:58,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198470085] [2022-12-14 14:57:58,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198470085] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:57:58,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1388587202] [2022-12-14 14:57:58,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:58,725 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:57:58,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:57:58,726 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:57:58,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-12-14 14:57:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:58,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:57:58,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:58,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:57:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:58,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1388587202] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:57:58,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794695695] [2022-12-14 14:57:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:58,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:57:58,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:57:58,971 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:57:58,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 14:57:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:59,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 14:57:59,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:59,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:57:59,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 14:57:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:59,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:57:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:59,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794695695] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:57:59,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:57:59,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 8, 8] total 18 [2022-12-14 14:57:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870599884] [2022-12-14 14:57:59,802 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:57:59,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 14:57:59,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:57:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 14:57:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-12-14 14:57:59,804 INFO L87 Difference]: Start difference. First operand 177 states and 192 transitions. Second operand has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:58:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:03,793 INFO L93 Difference]: Finished difference Result 318 states and 346 transitions. [2022-12-14 14:58:03,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 14:58:03,794 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-12-14 14:58:03,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:03,796 INFO L225 Difference]: With dead ends: 318 [2022-12-14 14:58:03,796 INFO L226 Difference]: Without dead ends: 318 [2022-12-14 14:58:03,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=195, Invalid=405, Unknown=0, NotChecked=0, Total=600 [2022-12-14 14:58:03,797 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 455 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:03,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1253 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 14:58:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-12-14 14:58:03,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 197. [2022-12-14 14:58:03,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 128 states have (on average 1.640625) internal successors, (210), 194 states have internal predecessors, (210), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 212 transitions. [2022-12-14 14:58:03,802 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 212 transitions. Word has length 25 [2022-12-14 14:58:03,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:03,802 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 212 transitions. [2022-12-14 14:58:03,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:58:03,803 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 212 transitions. [2022-12-14 14:58:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 14:58:03,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:03,803 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:03,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2022-12-14 14:58:04,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-12-14 14:58:04,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 14:58:04,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:58:04,406 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash -536579439, now seen corresponding path program 2 times [2022-12-14 14:58:04,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:04,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159611155] [2022-12-14 14:58:04,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:58:04,410 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 [2022-12-14 14:58:04,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:04,411 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:04,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 14:58:04,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 14:58:04,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:58:04,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:58:04,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:04,548 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 14:58:04,548 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 14:58:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-12-14 14:58:04,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:04,565 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:04,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159611155] [2022-12-14 14:58:04,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159611155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:04,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:04,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:58:04,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484251642] [2022-12-14 14:58:04,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:04,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:58:04,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:04,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:58:04,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:58:04,566 INFO L87 Difference]: Start difference. First operand 197 states and 212 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:04,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:04,911 INFO L93 Difference]: Finished difference Result 208 states and 224 transitions. [2022-12-14 14:58:04,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:58:04,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-12-14 14:58:04,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:04,913 INFO L225 Difference]: With dead ends: 208 [2022-12-14 14:58:04,913 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 14:58:04,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:58:04,913 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:04,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 147 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:58:04,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 14:58:04,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 192. [2022-12-14 14:58:04,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 128 states have (on average 1.6015625) internal successors, (205), 189 states have internal predecessors, (205), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 207 transitions. [2022-12-14 14:58:04,917 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 207 transitions. Word has length 45 [2022-12-14 14:58:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:04,918 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 207 transitions. [2022-12-14 14:58:04,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 207 transitions. [2022-12-14 14:58:04,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 14:58:04,918 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:04,918 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:04,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-12-14 14:58:05,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:05,120 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash -536579438, now seen corresponding path program 1 times [2022-12-14 14:58:05,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:05,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263399847] [2022-12-14 14:58:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:05,131 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 [2022-12-14 14:58:05,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:05,134 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:05,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-14 14:58:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:05,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 14:58:05,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:58:05,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:58:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:58:05,652 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:05,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263399847] [2022-12-14 14:58:05,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263399847] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:58:05,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2057373777] [2022-12-14 14:58:05,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:05,652 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:58:05,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:58:05,653 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:58:05,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-12-14 14:58:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:05,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 14:58:05,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:58:05,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:58:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:58:06,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2057373777] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:58:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820585996] [2022-12-14 14:58:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:06,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:58:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:58:06,023 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:58:06,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 14:58:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:06,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 14:58:06,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:06,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:58:06,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 14:58:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:58:06,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:58:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:58:12,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820585996] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:58:12,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:58:12,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 13, 13] total 38 [2022-12-14 14:58:12,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693282472] [2022-12-14 14:58:12,244 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:58:12,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-14 14:58:12,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:12,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-14 14:58:12,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=1035, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 14:58:12,246 INFO L87 Difference]: Start difference. First operand 192 states and 207 transitions. Second operand has 38 states, 38 states have (on average 3.789473684210526) internal successors, (144), 38 states have internal predecessors, (144), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:58:31,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:31,935 INFO L93 Difference]: Finished difference Result 353 states and 382 transitions. [2022-12-14 14:58:31,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 14:58:31,936 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.789473684210526) internal successors, (144), 38 states have internal predecessors, (144), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-12-14 14:58:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:31,937 INFO L225 Difference]: With dead ends: 353 [2022-12-14 14:58:31,937 INFO L226 Difference]: Without dead ends: 353 [2022-12-14 14:58:31,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=617, Invalid=1933, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 14:58:31,938 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1179 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:31,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 3089 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-12-14 14:58:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-12-14 14:58:31,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 232. [2022-12-14 14:58:31,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 168 states have (on average 1.4642857142857142) internal successors, (246), 229 states have internal predecessors, (246), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2022-12-14 14:58:31,943 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 45 [2022-12-14 14:58:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:31,943 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2022-12-14 14:58:31,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.789473684210526) internal successors, (144), 38 states have internal predecessors, (144), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:58:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2022-12-14 14:58:31,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 14:58:31,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:31,944 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:31,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 14:58:32,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-12-14 14:58:32,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2022-12-14 14:58:32,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:58:32,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:32,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:32,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1584587084, now seen corresponding path program 2 times [2022-12-14 14:58:32,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:32,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613592168] [2022-12-14 14:58:32,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:58:32,550 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 [2022-12-14 14:58:32,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:32,553 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:32,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-14 14:58:32,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 14:58:32,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:58:32,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 14:58:32,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:32,722 INFO L321 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2022-12-14 14:58:32,722 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 1 case distinctions, treesize of input 19 treesize of output 21 [2022-12-14 14:58:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 14:58:32,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:32,805 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:32,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613592168] [2022-12-14 14:58:32,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613592168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:32,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:32,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:58:32,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085779705] [2022-12-14 14:58:32,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:32,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:58:32,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:32,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:58:32,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:58:32,807 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:33,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:33,742 INFO L93 Difference]: Finished difference Result 351 states and 380 transitions. [2022-12-14 14:58:33,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:58:33,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-12-14 14:58:33,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:33,744 INFO L225 Difference]: With dead ends: 351 [2022-12-14 14:58:33,744 INFO L226 Difference]: Without dead ends: 351 [2022-12-14 14:58:33,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:58:33,745 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 430 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:33,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 475 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:58:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-12-14 14:58:33,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 295. [2022-12-14 14:58:33,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 232 states have (on average 1.581896551724138) internal successors, (367), 292 states have internal predecessors, (367), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:33,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 369 transitions. [2022-12-14 14:58:33,749 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 369 transitions. Word has length 53 [2022-12-14 14:58:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:33,749 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 369 transitions. [2022-12-14 14:58:33,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 369 transitions. [2022-12-14 14:58:33,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 14:58:33,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:33,750 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:33,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-12-14 14:58:33,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:33,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:33,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:33,951 INFO L85 PathProgramCache]: Analyzing trace with hash 448239575, now seen corresponding path program 1 times [2022-12-14 14:58:33,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:33,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585697766] [2022-12-14 14:58:33,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:33,952 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 [2022-12-14 14:58:33,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:33,953 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:33,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-14 14:58:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:34,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 14:58:34,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:34,351 INFO L321 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2022-12-14 14:58:34,351 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 1 case distinctions, treesize of input 19 treesize of output 21 [2022-12-14 14:58:34,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:58:34,567 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 14:58:34,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 36 [2022-12-14 14:58:34,588 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 14:58:34,589 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 [2022-12-14 14:58:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 14:58:34,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:34,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:34,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585697766] [2022-12-14 14:58:34,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585697766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:34,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:34,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 14:58:34,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525391639] [2022-12-14 14:58:34,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:34,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:58:34,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:34,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:58:34,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:58:34,659 INFO L87 Difference]: Start difference. First operand 295 states and 369 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:36,427 INFO L93 Difference]: Finished difference Result 267 states and 285 transitions. [2022-12-14 14:58:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:58:36,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-12-14 14:58:36,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:36,429 INFO L225 Difference]: With dead ends: 267 [2022-12-14 14:58:36,429 INFO L226 Difference]: Without dead ends: 267 [2022-12-14 14:58:36,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:58:36,429 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 580 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:36,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 336 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 14:58:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-12-14 14:58:36,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 244. [2022-12-14 14:58:36,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 182 states have (on average 1.456043956043956) internal successors, (265), 241 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:36,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 267 transitions. [2022-12-14 14:58:36,433 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 267 transitions. Word has length 56 [2022-12-14 14:58:36,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:36,433 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 267 transitions. [2022-12-14 14:58:36,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:36,433 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 267 transitions. [2022-12-14 14:58:36,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 14:58:36,434 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:36,434 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:36,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-12-14 14:58:36,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:36,635 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:36,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash 451837722, now seen corresponding path program 1 times [2022-12-14 14:58:36,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:36,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279339031] [2022-12-14 14:58:36,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:36,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:36,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:36,641 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:36,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-14 14:58:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:37,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 14:58:37,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:37,109 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 14:58:37,109 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 14:58:37,145 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 14:58:37,145 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 1 case distinctions, treesize of input 9 treesize of output 19 [2022-12-14 14:58:37,287 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 14:58:37,288 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 [2022-12-14 14:58:37,296 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 17 treesize of output 19 [2022-12-14 14:58:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 14:58:37,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:37,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:37,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279339031] [2022-12-14 14:58:37,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279339031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:37,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:37,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 14:58:37,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257419584] [2022-12-14 14:58:37,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:37,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:58:37,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:37,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:58:37,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:58:37,466 INFO L87 Difference]: Start difference. First operand 244 states and 267 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:39,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:39,238 INFO L93 Difference]: Finished difference Result 261 states and 279 transitions. [2022-12-14 14:58:39,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:58:39,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-12-14 14:58:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:39,240 INFO L225 Difference]: With dead ends: 261 [2022-12-14 14:58:39,240 INFO L226 Difference]: Without dead ends: 261 [2022-12-14 14:58:39,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:58:39,240 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 387 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:39,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 433 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 14:58:39,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-12-14 14:58:39,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 248. [2022-12-14 14:58:39,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 187 states have (on average 1.4438502673796791) internal successors, (270), 245 states have internal predecessors, (270), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:39,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 272 transitions. [2022-12-14 14:58:39,244 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 272 transitions. Word has length 59 [2022-12-14 14:58:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:39,244 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 272 transitions. [2022-12-14 14:58:39,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 272 transitions. [2022-12-14 14:58:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 14:58:39,245 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:39,245 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:39,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-12-14 14:58:39,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:39,446 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:39,448 INFO L85 PathProgramCache]: Analyzing trace with hash 270059549, now seen corresponding path program 1 times [2022-12-14 14:58:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:39,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078551316] [2022-12-14 14:58:39,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:39,451 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 [2022-12-14 14:58:39,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:39,454 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:39,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-12-14 14:58:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:39,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 14:58:39,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:39,891 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 [2022-12-14 14:58:39,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:40,020 INFO L321 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2022-12-14 14:58:40,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 30 [2022-12-14 14:58:40,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 11 [2022-12-14 14:58:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 14:58:40,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:40,099 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:40,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078551316] [2022-12-14 14:58:40,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078551316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:40,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:40,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 14:58:40,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039563401] [2022-12-14 14:58:40,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:40,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:58:40,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:40,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:58:40,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:40,100 INFO L87 Difference]: Start difference. First operand 248 states and 272 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:41,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:41,098 INFO L93 Difference]: Finished difference Result 246 states and 269 transitions. [2022-12-14 14:58:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 14:58:41,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-12-14 14:58:41,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:41,099 INFO L225 Difference]: With dead ends: 246 [2022-12-14 14:58:41,100 INFO L226 Difference]: Without dead ends: 246 [2022-12-14 14:58:41,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:58:41,100 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 159 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:41,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 630 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:58:41,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-12-14 14:58:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-12-14 14:58:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 187 states have (on average 1.427807486631016) internal successors, (267), 243 states have internal predecessors, (267), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 269 transitions. [2022-12-14 14:58:41,106 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 269 transitions. Word has length 62 [2022-12-14 14:58:41,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:41,106 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 269 transitions. [2022-12-14 14:58:41,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 269 transitions. [2022-12-14 14:58:41,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 14:58:41,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:41,107 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:41,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-12-14 14:58:41,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:41,309 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:41,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash 270059550, now seen corresponding path program 1 times [2022-12-14 14:58:41,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:41,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974214467] [2022-12-14 14:58:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:41,314 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 [2022-12-14 14:58:41,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:41,315 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:41,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-12-14 14:58:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:41,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 14:58:41,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:41,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 14:58:41,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:58:41,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:41,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:41,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 23 [2022-12-14 14:58:41,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 21 [2022-12-14 14:58:41,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9 [2022-12-14 14:58:41,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-12-14 14:58:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 14:58:41,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:41,974 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:41,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974214467] [2022-12-14 14:58:41,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974214467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:41,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:41,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:58:41,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870742251] [2022-12-14 14:58:41,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:41,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 14:58:41,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:41,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 14:58:41,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:58:41,975 INFO L87 Difference]: Start difference. First operand 246 states and 269 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:42,981 INFO L93 Difference]: Finished difference Result 245 states and 267 transitions. [2022-12-14 14:58:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:58:42,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-12-14 14:58:42,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:42,983 INFO L225 Difference]: With dead ends: 245 [2022-12-14 14:58:42,983 INFO L226 Difference]: Without dead ends: 245 [2022-12-14 14:58:42,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:58:42,983 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 161 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:42,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 466 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:58:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-12-14 14:58:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2022-12-14 14:58:42,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 187 states have (on average 1.4171122994652405) internal successors, (265), 242 states have internal predecessors, (265), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 267 transitions. [2022-12-14 14:58:42,987 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 267 transitions. Word has length 62 [2022-12-14 14:58:42,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:42,987 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 267 transitions. [2022-12-14 14:58:42,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:42,987 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 267 transitions. [2022-12-14 14:58:42,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 14:58:42,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:42,988 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:43,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-12-14 14:58:43,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:43,189 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:43,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:43,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1209648968, now seen corresponding path program 1 times [2022-12-14 14:58:43,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:43,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114538565] [2022-12-14 14:58:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:43,192 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 [2022-12-14 14:58:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:43,194 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:43,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-12-14 14:58:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:43,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 14:58:43,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:43,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 14:58:43,843 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 14:58:43,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 14:58:43,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:43,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 36 [2022-12-14 14:58:44,141 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 14:58:44,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-14 14:58:44,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-12-14 14:58:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 14:58:44,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:44,236 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:44,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114538565] [2022-12-14 14:58:44,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114538565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:44,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:44,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 14:58:44,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131559246] [2022-12-14 14:58:44,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:44,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:58:44,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:44,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:58:44,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:58:44,237 INFO L87 Difference]: Start difference. First operand 245 states and 267 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:45,692 INFO L93 Difference]: Finished difference Result 268 states and 291 transitions. [2022-12-14 14:58:45,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:58:45,693 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-12-14 14:58:45,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:45,693 INFO L225 Difference]: With dead ends: 268 [2022-12-14 14:58:45,693 INFO L226 Difference]: Without dead ends: 268 [2022-12-14 14:58:45,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:58:45,694 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 322 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:45,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 14:58:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-12-14 14:58:45,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 254. [2022-12-14 14:58:45,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 196 states have (on average 1.4285714285714286) internal successors, (280), 251 states have internal predecessors, (280), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 282 transitions. [2022-12-14 14:58:45,697 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 282 transitions. Word has length 66 [2022-12-14 14:58:45,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:45,697 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 282 transitions. [2022-12-14 14:58:45,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 282 transitions. [2022-12-14 14:58:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 14:58:45,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:45,698 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:45,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-12-14 14:58:45,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:45,900 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:45,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:45,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1209648969, now seen corresponding path program 1 times [2022-12-14 14:58:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:45,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370984308] [2022-12-14 14:58:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:45,903 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 [2022-12-14 14:58:45,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:45,905 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:45,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-12-14 14:58:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:46,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 14:58:46,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:46,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 14:58:46,490 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 14:58:46,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2022-12-14 14:58:46,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:58:46,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:46,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:46,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 34 treesize of output 34 [2022-12-14 14:58:46,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 21 [2022-12-14 14:58:46,839 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 14:58:46,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2022-12-14 14:58:46,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-12-14 14:58:46,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 13 [2022-12-14 14:58:46,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 7 [2022-12-14 14:58:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 14:58:47,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:58:47,010 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:47,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370984308] [2022-12-14 14:58:47,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370984308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:47,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:47,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 14:58:47,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439617021] [2022-12-14 14:58:47,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:47,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 14:58:47,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:58:47,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 14:58:47,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:58:47,012 INFO L87 Difference]: Start difference. First operand 254 states and 282 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:48,811 INFO L93 Difference]: Finished difference Result 266 states and 286 transitions. [2022-12-14 14:58:48,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 14:58:48,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-12-14 14:58:48,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:48,812 INFO L225 Difference]: With dead ends: 266 [2022-12-14 14:58:48,812 INFO L226 Difference]: Without dead ends: 266 [2022-12-14 14:58:48,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-12-14 14:58:48,812 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 194 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:48,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 450 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 14:58:48,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-12-14 14:58:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 254. [2022-12-14 14:58:48,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 196 states have (on average 1.4081632653061225) internal successors, (276), 251 states have internal predecessors, (276), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:48,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 278 transitions. [2022-12-14 14:58:48,816 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 278 transitions. Word has length 66 [2022-12-14 14:58:48,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:48,816 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 278 transitions. [2022-12-14 14:58:48,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:58:48,816 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 278 transitions. [2022-12-14 14:58:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 14:58:48,816 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:48,816 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:48,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-12-14 14:58:49,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:58:49,019 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 70 more)] === [2022-12-14 14:58:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:49,020 INFO L85 PathProgramCache]: Analyzing trace with hash -249734821, now seen corresponding path program 1 times [2022-12-14 14:58:49,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:58:49,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699197891] [2022-12-14 14:58:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:49,022 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 [2022-12-14 14:58:49,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:58:49,025 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 14:58:49,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-12-14 14:58:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:49,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 14:58:49,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:49,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 14:58:49,648 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 14:58:49,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 14:58:49,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:49,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 36 [2022-12-14 14:58:49,938 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 14:58:49,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-14 14:58:50,072 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 14:58:50,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-14 14:58:50,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-12-14 14:58:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-14 14:58:50,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:58:50,271 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1224 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem144#1.base| v_ArrVal_1224) |c_ULTIMATE.start_main_~argv~0#1.base|) (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-14 14:58:50,289 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1224 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0) v_ArrVal_1224) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-14 14:58:50,326 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1224 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1223 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem142#1.base| v_ArrVal_1223))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1224)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-14 14:58:50,349 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1224 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1223 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1223))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1224)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-14 14:58:50,383 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1224 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1223 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1222 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1222))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1223)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1224)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-14 14:58:50,429 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:58:50,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 78 [2022-12-14 14:58:50,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2715 treesize of output 2094 [2022-12-14 14:58:50,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1840 treesize of output 1434 [2022-12-14 14:58:50,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1434 treesize of output 1378 [2022-12-14 14:58:50,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1378 treesize of output 1210 [2022-12-14 14:58:58,119 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-12-14 14:58:58,120 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 30 treesize of output 30 [2022-12-14 14:58:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 3 not checked. [2022-12-14 14:58:58,125 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:58:58,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699197891] [2022-12-14 14:58:58,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699197891] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:58:58,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1812712706] [2022-12-14 14:58:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:58,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:58:58,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:58:58,126 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:58:58,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4e396f3-a74b-421d-b999-1a9764c5922f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-12-14 14:58:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:59,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 14:58:59,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:58:59,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 14:58:59,626 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 14:58:59,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 14:58:59,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:58:59,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 36 [2022-12-14 14:58:59,784 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 14:58:59,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-14 14:58:59,867 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 14:58:59,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-14 14:58:59,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-12-14 14:58:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-14 14:58:59,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:59:02,093 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1338 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0) v_ArrVal_1338) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2022-12-14 14:59:02,134 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1338 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1337 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem142#1.base| v_ArrVal_1337))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1338)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2022-12-14 14:59:02,157 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1338 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1337 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1337))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1338)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))) (_ bv0 1))) is different from false [2022-12-14 14:59:02,193 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1338 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1337 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1336 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1336))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1337)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1338)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2022-12-14 14:59:02,236 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:59:02,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 78 [2022-12-14 14:59:02,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6979 treesize of output 5836 [2022-12-14 14:59:02,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5832 treesize of output 5608 [2022-12-14 14:59:02,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5608 treesize of output 4908 [2022-12-14 14:59:02,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4908 treesize of output 3634