./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 32bit --witnessprinter.graph.data.programhash 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 --- 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 14:12:41,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:12:41,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:12:41,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:12:41,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:12:41,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:12:41,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:12:41,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:12:41,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:12:41,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:12:41,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:12:41,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:12:41,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:12:41,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:12:41,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:12:41,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:12:41,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:12:41,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:12:41,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:12:41,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:12:41,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:12:41,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:12:41,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:12:41,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:12:41,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:12:41,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:12:41,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:12:41,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:12:41,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:12:41,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:12:41,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:12:41,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:12:41,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:12:41,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:12:41,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:12:41,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:12:41,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:12:41,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:12:41,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:12:41,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:12:41,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:12:41,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 14:12:41,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:12:41,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:12:41,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:12:41,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:12:41,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:12:41,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:12:41,957 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:12:41,957 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:12:41,957 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:12:41,957 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:12:41,958 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:12:41,958 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:12:41,958 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:12:41,958 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:12:41,958 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:12:41,958 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:12:41,959 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:12:41,959 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:12:41,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 14:12:41,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 14:12:41,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:12:41,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:12:41,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:12:41,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:12:41,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:12:41,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:12:41,960 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 14:12:41,961 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 14:12:41,961 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 14:12:41,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:12:41,961 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:12:41,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:12:41,962 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:12:41,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:12:41,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:12:41,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:12:41,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:12:41,963 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:12:41,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:12:41,963 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:12:41,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:12:41,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:12:41,963 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_438d4567-6f06-4793-8b14-f95ab3743ebb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 [2022-12-14 14:12:42,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:12:42,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:12:42,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:12:42,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:12:42,158 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:12:42,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-12-14 14:12:44,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:12:44,892 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:12:44,893 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-12-14 14:12:44,897 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data/0c43770cf/9677d66e34fd436db4e90b5687c42fe6/FLAG9c69573d6 [2022-12-14 14:12:44,908 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data/0c43770cf/9677d66e34fd436db4e90b5687c42fe6 [2022-12-14 14:12:44,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:12:44,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:12:44,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:12:44,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:12:44,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:12:44,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:12:44" (1/1) ... [2022-12-14 14:12:44,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f91fd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:44, skipping insertion in model container [2022-12-14 14:12:44,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:12:44" (1/1) ... [2022-12-14 14:12:44,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:12:44,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:12:45,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:45,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:45,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:45,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:45,052 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-12-14 14:12:45,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:12:45,069 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 14:12:45,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44ebbddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:45, skipping insertion in model container [2022-12-14 14:12:45,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:12:45,070 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 14:12:45,071 INFO L158 Benchmark]: Toolchain (without parser) took 159.04ms. Allocated memory is still 192.9MB. Free memory was 157.6MB in the beginning and 147.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 14:12:45,072 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 125.8MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:12:45,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.92ms. Allocated memory is still 192.9MB. Free memory was 157.6MB in the beginning and 147.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 14:12:45,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 125.8MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.92ms. Allocated memory is still 192.9MB. Free memory was 157.6MB in the beginning and 147.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 90]: 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_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 32bit --witnessprinter.graph.data.programhash 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 --- 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 14:12:46,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:12:46,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:12:46,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:12:46,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:12:46,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:12:46,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:12:46,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:12:46,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:12:46,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:12:46,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:12:46,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:12:46,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:12:46,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:12:46,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:12:46,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:12:46,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:12:46,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:12:46,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:12:46,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:12:46,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:12:46,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:12:46,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:12:46,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:12:46,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:12:46,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:12:46,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:12:46,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:12:46,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:12:46,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:12:46,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:12:46,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:12:46,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:12:46,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:12:46,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:12:46,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:12:46,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:12:46,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:12:46,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:12:46,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:12:46,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:12:46,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 14:12:46,498 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:12:46,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:12:46,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:12:46,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:12:46,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:12:46,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:12:46,500 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:12:46,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:12:46,500 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:12:46,500 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:12:46,500 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:12:46,500 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:12:46,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 14:12:46,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 14:12:46,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:12:46,501 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:12:46,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:12:46,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:12:46,503 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:12:46,503 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:12:46,503 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:12:46,503 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:12:46,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:12:46,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:12:46,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:12:46,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:12:46,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:12:46,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:12:46,504 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:12:46,504 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:12:46,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:12:46,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:12:46,504 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_438d4567-6f06-4793-8b14-f95ab3743ebb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 [2022-12-14 14:12:46,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:12:46,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:12:46,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:12:46,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:12:46,774 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:12:46,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-12-14 14:12:49,289 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:12:49,427 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:12:49,428 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-12-14 14:12:49,433 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data/a65c43dbf/fd7de19bb81941dd92196d4f4b8bb6bf/FLAG6e3587c62 [2022-12-14 14:12:49,444 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/data/a65c43dbf/fd7de19bb81941dd92196d4f4b8bb6bf [2022-12-14 14:12:49,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:12:49,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:12:49,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:12:49,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:12:49,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:12:49,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420c982c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49, skipping insertion in model container [2022-12-14 14:12:49,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:12:49,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:12:49,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:49,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:49,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:49,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:49,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-12-14 14:12:49,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:12:49,616 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 14:12:49,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:12:49,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:49,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:49,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:49,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:49,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-12-14 14:12:49,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:12:49,634 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:12:49,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:49,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:49,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:12:49,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:12:49,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-12-14 14:12:49,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:12:49,665 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:12:49,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49 WrapperNode [2022-12-14 14:12:49,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:12:49,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:12:49,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:12:49,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:12:49,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,696 INFO L138 Inliner]: procedures = 28, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-12-14 14:12:49,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:12:49,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:12:49,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:12:49,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:12:49,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:12:49,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:12:49,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:12:49,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:12:49,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (1/1) ... [2022-12-14 14:12:49,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:12:49,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:12:49,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:12:49,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:12:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:12:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 14:12:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:12:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 14:12:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 14:12:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 14:12:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 14:12:49,771 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 14:12:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 14:12:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 14:12:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:12:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:12:49,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:12:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:12:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 14:12:49,773 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 14:12:49,856 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:12:49,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:12:50,193 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:12:50,261 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:12:50,261 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 14:12:50,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:12:50 BoogieIcfgContainer [2022-12-14 14:12:50,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:12:50,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:12:50,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:12:50,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:12:50,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:12:49" (1/3) ... [2022-12-14 14:12:50,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d3273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:12:50, skipping insertion in model container [2022-12-14 14:12:50,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:12:49" (2/3) ... [2022-12-14 14:12:50,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d3273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:12:50, skipping insertion in model container [2022-12-14 14:12:50,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:12:50" (3/3) ... [2022-12-14 14:12:50,269 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue2.wvr.c [2022-12-14 14:12:50,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:12:50,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-14 14:12:50,283 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:12:50,330 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 14:12:50,353 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:12:50,364 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 133 transitions, 282 flow [2022-12-14 14:12:50,366 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 133 transitions, 282 flow [2022-12-14 14:12:50,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 133 transitions, 282 flow [2022-12-14 14:12:50,400 INFO L130 PetriNetUnfolder]: 9/131 cut-off events. [2022-12-14 14:12:50,401 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 14:12:50,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 131 events. 9/131 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-14 14:12:50,405 INFO L119 LiptonReduction]: Number of co-enabled transitions 840 [2022-12-14 14:13:03,260 INFO L134 LiptonReduction]: Checked pairs total: 1143 [2022-12-14 14:13:03,261 INFO L136 LiptonReduction]: Total number of compositions: 133 [2022-12-14 14:13:03,266 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 86 flow [2022-12-14 14:13:03,282 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 150 states, 106 states have (on average 3.452830188679245) internal successors, (366), 149 states have internal predecessors, (366), 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 14:13:03,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:13:03,299 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;@252944d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:13:03,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 14:13:03,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 106 states have (on average 3.452830188679245) internal successors, (366), 149 states have internal predecessors, (366), 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 14:13:03,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 14:13:03,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:03,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 14:13:03,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:03,309 INFO L85 PathProgramCache]: Analyzing trace with hash 19952, now seen corresponding path program 1 times [2022-12-14 14:13:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:03,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963746424] [2022-12-14 14:13:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:03,318 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 14:13:03,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:03,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:03,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:03,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:13:03,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:03,458 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-12-14 14:13:03,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2022-12-14 14:13:03,486 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 14:13:03,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:03,487 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:03,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963746424] [2022-12-14 14:13:03,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963746424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:03,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:03,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:13:03,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216158250] [2022-12-14 14:13:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:03,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:03,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:03,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:03,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:03,526 INFO L87 Difference]: Start difference. First operand has 150 states, 106 states have (on average 3.452830188679245) internal successors, (366), 149 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:03,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:03,651 INFO L93 Difference]: Finished difference Result 148 states and 364 transitions. [2022-12-14 14:13:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:03,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 14:13:03,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:03,660 INFO L225 Difference]: With dead ends: 148 [2022-12-14 14:13:03,660 INFO L226 Difference]: Without dead ends: 148 [2022-12-14 14:13:03,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:03,663 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:03,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 2 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:03,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-14 14:13:03,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-12-14 14:13:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 106 states have (on average 3.4339622641509435) internal successors, (364), 147 states have internal predecessors, (364), 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 14:13:03,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 364 transitions. [2022-12-14 14:13:03,694 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 364 transitions. Word has length 2 [2022-12-14 14:13:03,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:03,695 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 364 transitions. [2022-12-14 14:13:03,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 364 transitions. [2022-12-14 14:13:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 14:13:03,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:03,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 14:13:03,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:03,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:03,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:03,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash 20016, now seen corresponding path program 1 times [2022-12-14 14:13:03,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:03,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717605319] [2022-12-14 14:13:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:03,902 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 14:13:03,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:03,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:03,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:04,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:13:04,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:04,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:04,083 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 14:13:04,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 20 [2022-12-14 14:13:04,097 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 14:13:04,128 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 14:13:04,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:04,128 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:04,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717605319] [2022-12-14 14:13:04,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717605319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:04,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:04,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:13:04,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440880487] [2022-12-14 14:13:04,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:04,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:04,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:04,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:04,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:04,131 INFO L87 Difference]: Start difference. First operand 148 states and 364 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:04,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:04,249 INFO L93 Difference]: Finished difference Result 122 states and 288 transitions. [2022-12-14 14:13:04,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:04,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 14:13:04,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:04,251 INFO L225 Difference]: With dead ends: 122 [2022-12-14 14:13:04,251 INFO L226 Difference]: Without dead ends: 122 [2022-12-14 14:13:04,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:04,252 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:04,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:04,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-14 14:13:04,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-12-14 14:13:04,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 3.2) internal successors, (288), 121 states have internal predecessors, (288), 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 14:13:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 288 transitions. [2022-12-14 14:13:04,263 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 288 transitions. Word has length 2 [2022-12-14 14:13:04,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:04,263 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 288 transitions. [2022-12-14 14:13:04,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 288 transitions. [2022-12-14 14:13:04,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 14:13:04,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:04,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 14:13:04,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:04,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:04,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:04,468 INFO L85 PathProgramCache]: Analyzing trace with hash 19953, now seen corresponding path program 1 times [2022-12-14 14:13:04,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:04,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257217774] [2022-12-14 14:13:04,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:04,470 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 14:13:04,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:04,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:04,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:04,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:13:04,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:04,615 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:04,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:04,636 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 14:13:04,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:04,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:04,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257217774] [2022-12-14 14:13:04,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257217774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:04,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:04,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:13:04,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534459189] [2022-12-14 14:13:04,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:04,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:04,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:04,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:04,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:04,638 INFO L87 Difference]: Start difference. First operand 122 states and 288 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:04,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:04,832 INFO L93 Difference]: Finished difference Result 242 states and 574 transitions. [2022-12-14 14:13:04,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:04,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 14:13:04,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:04,836 INFO L225 Difference]: With dead ends: 242 [2022-12-14 14:13:04,836 INFO L226 Difference]: Without dead ends: 242 [2022-12-14 14:13:04,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:04,837 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 25 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:04,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:13:04,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-12-14 14:13:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 123. [2022-12-14 14:13:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 3.197802197802198) internal successors, (291), 122 states have internal predecessors, (291), 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 14:13:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 291 transitions. [2022-12-14 14:13:04,844 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 291 transitions. Word has length 2 [2022-12-14 14:13:04,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:04,844 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 291 transitions. [2022-12-14 14:13:04,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 291 transitions. [2022-12-14 14:13:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 14:13:04,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:04,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 14:13:04,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:05,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:05,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:05,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:05,047 INFO L85 PathProgramCache]: Analyzing trace with hash 20017, now seen corresponding path program 1 times [2022-12-14 14:13:05,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:05,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891736258] [2022-12-14 14:13:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:05,049 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 14:13:05,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:05,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:05,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:05,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:13:05,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:05,209 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2022-12-14 14:13:05,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-12-14 14:13:05,241 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 14:13:05,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:05,242 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:05,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891736258] [2022-12-14 14:13:05,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891736258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:05,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:05,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:13:05,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841799217] [2022-12-14 14:13:05,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:05,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:05,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:05,244 INFO L87 Difference]: Start difference. First operand 123 states and 291 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:05,344 INFO L93 Difference]: Finished difference Result 97 states and 214 transitions. [2022-12-14 14:13:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:05,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 14:13:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:05,345 INFO L225 Difference]: With dead ends: 97 [2022-12-14 14:13:05,345 INFO L226 Difference]: Without dead ends: 97 [2022-12-14 14:13:05,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:05,347 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:05,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-14 14:13:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-12-14 14:13:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 2.8533333333333335) internal successors, (214), 96 states have internal predecessors, (214), 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 14:13:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 214 transitions. [2022-12-14 14:13:05,353 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 214 transitions. Word has length 2 [2022-12-14 14:13:05,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:05,353 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 214 transitions. [2022-12-14 14:13:05,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 214 transitions. [2022-12-14 14:13:05,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:13:05,354 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:05,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:13:05,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:05,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:05,555 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:05,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:05,556 INFO L85 PathProgramCache]: Analyzing trace with hash 620454, now seen corresponding path program 1 times [2022-12-14 14:13:05,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:05,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742365214] [2022-12-14 14:13:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:05,558 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 14:13:05,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:05,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:05,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Waiting until timeout for monitored process [2022-12-14 14:13:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:05,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 14:13:05,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:05,705 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:05,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:05,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:05,955 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:05,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742365214] [2022-12-14 14:13:05,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742365214] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:05,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1641705285] [2022-12-14 14:13:05,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:05,955 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:05,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:13:05,969 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:13:05,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 14:13:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:06,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 14:13:06,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:06,093 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:06,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:06,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:06,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1641705285] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:06,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203406711] [2022-12-14 14:13:06,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:06,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:06,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:06,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:13:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:06,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 14:13:06,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:06,319 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:06,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:06,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:06,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203406711] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:06,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:13:06,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-12-14 14:13:06,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790790235] [2022-12-14 14:13:06,459 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:13:06,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:13:06,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:06,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:13:06,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:13:06,459 INFO L87 Difference]: Start difference. First operand 97 states and 214 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:07,281 INFO L93 Difference]: Finished difference Result 379 states and 844 transitions. [2022-12-14 14:13:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:13:07,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 14:13:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:07,284 INFO L225 Difference]: With dead ends: 379 [2022-12-14 14:13:07,285 INFO L226 Difference]: Without dead ends: 379 [2022-12-14 14:13:07,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:13:07,286 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 183 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:07,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 12 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:13:07,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-12-14 14:13:07,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 100. [2022-12-14 14:13:07,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 2.8205128205128207) internal successors, (220), 99 states have internal predecessors, (220), 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 14:13:07,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 220 transitions. [2022-12-14 14:13:07,295 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 220 transitions. Word has length 3 [2022-12-14 14:13:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:07,295 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 220 transitions. [2022-12-14 14:13:07,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 220 transitions. [2022-12-14 14:13:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:13:07,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:07,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:13:07,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Ended with exit code 0 [2022-12-14 14:13:07,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:07,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 14:13:07,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:07,899 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:07,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:07,900 INFO L85 PathProgramCache]: Analyzing trace with hash 19249278, now seen corresponding path program 1 times [2022-12-14 14:13:07,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:07,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611339273] [2022-12-14 14:13:07,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:07,902 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 14:13:07,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:07,903 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:07,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (9)] Waiting until timeout for monitored process [2022-12-14 14:13:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:07,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:13:07,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:07,989 INFO L321 Elim1Store]: treesize reduction 43, result has 33.8 percent of original size [2022-12-14 14:13:07,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 29 [2022-12-14 14:13:08,002 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 14:13:08,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:08,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:08,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611339273] [2022-12-14 14:13:08,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611339273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:08,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:08,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:13:08,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341482295] [2022-12-14 14:13:08,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:08,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:08,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:08,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:08,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:08,004 INFO L87 Difference]: Start difference. First operand 100 states and 220 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:08,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:08,081 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2022-12-14 14:13:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:08,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 14:13:08,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:08,081 INFO L225 Difference]: With dead ends: 90 [2022-12-14 14:13:08,081 INFO L226 Difference]: Without dead ends: 90 [2022-12-14 14:13:08,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 14:13:08,082 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:08,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:08,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-12-14 14:13:08,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-12-14 14:13:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 74 states have (on average 2.7027027027027026) internal successors, (200), 89 states have internal predecessors, (200), 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 14:13:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 200 transitions. [2022-12-14 14:13:08,085 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 200 transitions. Word has length 4 [2022-12-14 14:13:08,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:08,085 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 200 transitions. [2022-12-14 14:13:08,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 200 transitions. [2022-12-14 14:13:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:13:08,086 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:08,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:13:08,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (9)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:08,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:08,288 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:08,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:08,288 INFO L85 PathProgramCache]: Analyzing trace with hash 19249279, now seen corresponding path program 1 times [2022-12-14 14:13:08,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:08,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069095001] [2022-12-14 14:13:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:08,289 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 14:13:08,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:08,290 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:08,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Waiting until timeout for monitored process [2022-12-14 14:13:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:08,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:13:08,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:08,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:13:08,398 INFO L321 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2022-12-14 14:13:08,398 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 1 case distinctions, treesize of input 12 treesize of output 23 [2022-12-14 14:13:08,407 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 26 treesize of output 24 [2022-12-14 14:13:08,430 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 14:13:08,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:08,430 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:08,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069095001] [2022-12-14 14:13:08,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069095001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:08,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:08,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:13:08,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503613260] [2022-12-14 14:13:08,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:08,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:13:08,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:08,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:13:08,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:13:08,432 INFO L87 Difference]: Start difference. First operand 90 states and 200 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:08,508 INFO L93 Difference]: Finished difference Result 80 states and 180 transitions. [2022-12-14 14:13:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:13:08,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 14:13:08,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:08,508 INFO L225 Difference]: With dead ends: 80 [2022-12-14 14:13:08,509 INFO L226 Difference]: Without dead ends: 80 [2022-12-14 14:13:08,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 14:13:08,509 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:08,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:08,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-12-14 14:13:08,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-12-14 14:13:08,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 70 states have (on average 2.5714285714285716) internal successors, (180), 79 states have internal predecessors, (180), 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 14:13:08,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 180 transitions. [2022-12-14 14:13:08,513 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 180 transitions. Word has length 4 [2022-12-14 14:13:08,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:08,513 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 180 transitions. [2022-12-14 14:13:08,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 180 transitions. [2022-12-14 14:13:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:13:08,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:08,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:13:08,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Ended with exit code 0 [2022-12-14 14:13:08,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:08,716 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:08,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:08,717 INFO L85 PathProgramCache]: Analyzing trace with hash 596723852, now seen corresponding path program 1 times [2022-12-14 14:13:08,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:08,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438566567] [2022-12-14 14:13:08,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:08,718 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 14:13:08,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:08,721 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:08,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:08,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:13:08,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:08,812 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-12-14 14:13:08,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2022-12-14 14:13:08,828 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 14:13:08,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:08,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:08,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438566567] [2022-12-14 14:13:08,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438566567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:08,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:08,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:13:08,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014083635] [2022-12-14 14:13:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:08,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:13:08,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:13:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:13:08,829 INFO L87 Difference]: Start difference. First operand 80 states and 180 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:08,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:08,916 INFO L93 Difference]: Finished difference Result 58 states and 127 transitions. [2022-12-14 14:13:08,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:13:08,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 14:13:08,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:08,917 INFO L225 Difference]: With dead ends: 58 [2022-12-14 14:13:08,917 INFO L226 Difference]: Without dead ends: 58 [2022-12-14 14:13:08,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:13:08,918 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:08,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 2 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-14 14:13:08,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-12-14 14:13:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 2.3962264150943398) internal successors, (127), 57 states have internal predecessors, (127), 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 14:13:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 127 transitions. [2022-12-14 14:13:08,921 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 127 transitions. Word has length 5 [2022-12-14 14:13:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:08,921 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 127 transitions. [2022-12-14 14:13:08,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 127 transitions. [2022-12-14 14:13:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:13:08,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:08,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:13:08,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Ended with exit code 0 [2022-12-14 14:13:09,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:09,123 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:09,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:09,124 INFO L85 PathProgramCache]: Analyzing trace with hash 596723853, now seen corresponding path program 1 times [2022-12-14 14:13:09,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:09,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705814306] [2022-12-14 14:13:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:09,124 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 14:13:09,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:09,125 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:09,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:09,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 14:13:09,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:09,250 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:09,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:09,322 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 14:13:09,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:09,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:09,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705814306] [2022-12-14 14:13:09,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705814306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:09,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:09,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:13:09,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175509738] [2022-12-14 14:13:09,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:09,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:13:09,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:09,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:13:09,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:13:09,323 INFO L87 Difference]: Start difference. First operand 58 states and 127 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:09,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:09,478 INFO L93 Difference]: Finished difference Result 88 states and 193 transitions. [2022-12-14 14:13:09,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:13:09,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 14:13:09,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:09,478 INFO L225 Difference]: With dead ends: 88 [2022-12-14 14:13:09,478 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 14:13:09,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:13:09,479 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 52 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:09,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:09,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 14:13:09,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 68. [2022-12-14 14:13:09,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 2.5555555555555554) internal successors, (161), 67 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 161 transitions. [2022-12-14 14:13:09,481 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 161 transitions. Word has length 5 [2022-12-14 14:13:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:09,481 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 161 transitions. [2022-12-14 14:13:09,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 161 transitions. [2022-12-14 14:13:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:13:09,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:09,482 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-12-14 14:13:09,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Ended with exit code 0 [2022-12-14 14:13:09,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:09,684 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1305973553, now seen corresponding path program 2 times [2022-12-14 14:13:09,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:09,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336315662] [2022-12-14 14:13:09,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:13:09,686 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 14:13:09,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:09,689 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:09,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Waiting until timeout for monitored process [2022-12-14 14:13:09,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:13:09,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:09,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 14:13:09,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:09,828 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:09,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:09,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:10,558 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:10,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336315662] [2022-12-14 14:13:10,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336315662] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:10,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1955915766] [2022-12-14 14:13:10,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:13:10,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:10,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:13:10,559 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:13:10,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-12-14 14:13:10,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:13:10,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:10,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 14:13:10,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:10,742 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:10,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:10,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:10,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1955915766] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:10,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621747903] [2022-12-14 14:13:10,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:13:10,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:10,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:10,913 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:10,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 14:13:10,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:13:10,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:10,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 14:13:10,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:11,037 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:11,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:11,081 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:11,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:11,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621747903] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:11,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:13:11,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2022-12-14 14:13:11,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964969080] [2022-12-14 14:13:11,213 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:13:11,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 14:13:11,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:11,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 14:13:11,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-12-14 14:13:11,214 INFO L87 Difference]: Start difference. First operand 68 states and 161 transitions. Second operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 14:13:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:14,143 INFO L93 Difference]: Finished difference Result 623 states and 1514 transitions. [2022-12-14 14:13:14,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 14:13:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 14:13:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:14,146 INFO L225 Difference]: With dead ends: 623 [2022-12-14 14:13:14,146 INFO L226 Difference]: Without dead ends: 623 [2022-12-14 14:13:14,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-12-14 14:13:14,146 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 646 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:14,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 58 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 14:13:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-12-14 14:13:14,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 74. [2022-12-14 14:13:14,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 2.5072463768115942) internal successors, (173), 73 states have internal predecessors, (173), 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 14:13:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 173 transitions. [2022-12-14 14:13:14,154 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 173 transitions. Word has length 6 [2022-12-14 14:13:14,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:14,154 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 173 transitions. [2022-12-14 14:13:14,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 14:13:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 173 transitions. [2022-12-14 14:13:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:13:14,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:14,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:13:14,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Ended with exit code 0 [2022-12-14 14:13:14,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:14,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:14,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:14,757 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:14,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:14,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1318572694, now seen corresponding path program 1 times [2022-12-14 14:13:14,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:14,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930846683] [2022-12-14 14:13:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:14,759 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 14:13:14,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:14,762 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:14,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:14,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 14:13:14,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:14,891 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:14,891 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:14,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:14,987 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:14,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930846683] [2022-12-14 14:13:14,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930846683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:14,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:14,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:13:14,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552167031] [2022-12-14 14:13:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:14,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:13:14,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:14,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:13:14,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:13:14,989 INFO L87 Difference]: Start difference. First operand 74 states and 173 transitions. Second operand has 5 states, 5 states have (on average 1.2) 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 14:13:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:15,247 INFO L93 Difference]: Finished difference Result 115 states and 246 transitions. [2022-12-14 14:13:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:13:15,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) 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 14:13:15,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:15,248 INFO L225 Difference]: With dead ends: 115 [2022-12-14 14:13:15,248 INFO L226 Difference]: Without dead ends: 115 [2022-12-14 14:13:15,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:13:15,249 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:15,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 8 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:13:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-14 14:13:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 105. [2022-12-14 14:13:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 100 states have (on average 2.38) internal successors, (238), 104 states have internal predecessors, (238), 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 14:13:15,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 238 transitions. [2022-12-14 14:13:15,251 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 238 transitions. Word has length 6 [2022-12-14 14:13:15,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:15,252 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 238 transitions. [2022-12-14 14:13:15,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) 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 14:13:15,252 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 238 transitions. [2022-12-14 14:13:15,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:13:15,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:15,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:15,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:15,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:15,454 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:15,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:15,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1843075531, now seen corresponding path program 1 times [2022-12-14 14:13:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:15,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936057080] [2022-12-14 14:13:15,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:15,457 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 14:13:15,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:15,460 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:15,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:15,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 14:13:15,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:15,597 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:15,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:15,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:15,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:16,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:16,033 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:16,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936057080] [2022-12-14 14:13:16,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936057080] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:16,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2139112924] [2022-12-14 14:13:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:16,034 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:16,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:13:16,034 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:13:16,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-12-14 14:13:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:16,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:13:16,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:16,267 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 14:13:16,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:16,447 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 14:13:16,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2139112924] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:16,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643253975] [2022-12-14 14:13:16,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:16,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:16,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:16,449 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:16,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-14 14:13:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:16,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:13:16,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:16,536 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 14:13:16,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:16,560 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 14:13:16,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643253975] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:16,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:13:16,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5, 5, 5, 5] total 18 [2022-12-14 14:13:16,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851789872] [2022-12-14 14:13:16,560 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:13:16,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 14:13:16,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:16,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 14:13:16,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-12-14 14:13:16,561 INFO L87 Difference]: Start difference. First operand 105 states and 238 transitions. Second operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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 14:13:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:18,979 INFO L93 Difference]: Finished difference Result 236 states and 513 transitions. [2022-12-14 14:13:18,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 14:13:18,980 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 14:13:18,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:18,980 INFO L225 Difference]: With dead ends: 236 [2022-12-14 14:13:18,980 INFO L226 Difference]: Without dead ends: 236 [2022-12-14 14:13:18,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 14:13:18,981 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 577 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:18,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 53 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 14:13:18,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-12-14 14:13:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 162. [2022-12-14 14:13:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 2.5923566878980893) internal successors, (407), 161 states have internal predecessors, (407), 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 14:13:18,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 407 transitions. [2022-12-14 14:13:18,985 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 407 transitions. Word has length 7 [2022-12-14 14:13:18,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:18,985 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 407 transitions. [2022-12-14 14:13:18,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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 14:13:18,985 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 407 transitions. [2022-12-14 14:13:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:13:18,986 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:18,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:18,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-14 14:13:19,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:19,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2022-12-14 14:13:19,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:19,588 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:19,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:19,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2069951129, now seen corresponding path program 1 times [2022-12-14 14:13:19,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:19,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134973547] [2022-12-14 14:13:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:19,591 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 14:13:19,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:19,593 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:19,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:19,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 14:13:19,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:19,708 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:19,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:19,795 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 14:13:19,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:13:19,795 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:19,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134973547] [2022-12-14 14:13:19,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134973547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:13:19,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:13:19,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:13:19,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820979433] [2022-12-14 14:13:19,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:13:19,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:13:19,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:19,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:13:19,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:13:19,797 INFO L87 Difference]: Start difference. First operand 162 states and 407 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:19,971 INFO L93 Difference]: Finished difference Result 214 states and 543 transitions. [2022-12-14 14:13:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:13:19,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 14:13:19,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:19,972 INFO L225 Difference]: With dead ends: 214 [2022-12-14 14:13:19,972 INFO L226 Difference]: Without dead ends: 214 [2022-12-14 14:13:19,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:13:19,973 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 49 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:19,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:13:19,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-12-14 14:13:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2022-12-14 14:13:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 2.721311475409836) internal successors, (498), 187 states have internal predecessors, (498), 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 14:13:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 498 transitions. [2022-12-14 14:13:19,977 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 498 transitions. Word has length 7 [2022-12-14 14:13:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:19,977 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 498 transitions. [2022-12-14 14:13:19,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:13:19,977 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 498 transitions. [2022-12-14 14:13:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:13:19,978 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:19,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:19,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:20,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:20,179 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1792079684, now seen corresponding path program 1 times [2022-12-14 14:13:20,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:20,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224758710] [2022-12-14 14:13:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:20,182 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 14:13:20,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:20,184 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:20,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:20,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 14:13:20,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:20,340 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:20,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:20,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:20,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:20,854 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:20,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224758710] [2022-12-14 14:13:20,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224758710] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:20,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2004274712] [2022-12-14 14:13:20,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:20,854 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:20,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:13:20,855 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:13:20,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-12-14 14:13:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:20,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:13:20,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:21,134 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 14:13:21,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:21,359 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 14:13:21,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2004274712] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:21,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16681518] [2022-12-14 14:13:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:21,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:21,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:21,360 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:21,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-14 14:13:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:21,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:13:21,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:21,465 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 14:13:21,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:21,488 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 14:13:21,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16681518] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:21,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:13:21,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5, 5, 5, 5] total 18 [2022-12-14 14:13:21,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858616964] [2022-12-14 14:13:21,489 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:13:21,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 14:13:21,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:21,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 14:13:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-12-14 14:13:21,490 INFO L87 Difference]: Start difference. First operand 188 states and 498 transitions. Second operand has 20 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 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 14:13:23,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:23,891 INFO L93 Difference]: Finished difference Result 326 states and 816 transitions. [2022-12-14 14:13:23,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 14:13:23,892 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 14:13:23,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:23,894 INFO L225 Difference]: With dead ends: 326 [2022-12-14 14:13:23,894 INFO L226 Difference]: Without dead ends: 326 [2022-12-14 14:13:23,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 14:13:23,895 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 286 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:23,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 61 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 14:13:23,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-12-14 14:13:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 246. [2022-12-14 14:13:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 2.892116182572614) internal successors, (697), 245 states have internal predecessors, (697), 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 14:13:23,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 697 transitions. [2022-12-14 14:13:23,904 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 697 transitions. Word has length 9 [2022-12-14 14:13:23,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:23,904 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 697 transitions. [2022-12-14 14:13:23,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 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 14:13:23,904 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 697 transitions. [2022-12-14 14:13:23,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:13:23,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:23,905 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2022-12-14 14:13:23,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:24,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2022-12-14 14:13:24,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-14 14:13:24,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:24,508 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1118431187, now seen corresponding path program 2 times [2022-12-14 14:13:24,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:24,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392088232] [2022-12-14 14:13:24,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:13:24,509 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 14:13:24,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:24,510 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:24,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (24)] Waiting until timeout for monitored process [2022-12-14 14:13:24,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:13:24,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:24,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 14:13:24,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:24,686 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:24,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:24,943 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:24,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:26,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:26,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392088232] [2022-12-14 14:13:26,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392088232] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:26,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1878509963] [2022-12-14 14:13:26,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:13:26,239 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:26,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:13:26,239 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:13:26,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2022-12-14 14:13:26,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:13:26,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:26,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 14:13:26,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:26,489 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:26,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:26,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:27,824 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:27,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1878509963] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:27,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115569855] [2022-12-14 14:13:27,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:13:27,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:27,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:27,825 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:27,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-14 14:13:27,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:13:27,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:27,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 14:13:27,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:28,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:13:29,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115569855] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:29,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:13:29,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 8, 8] total 44 [2022-12-14 14:13:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696039815] [2022-12-14 14:13:29,513 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:13:29,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-14 14:13:29,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:29,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-14 14:13:29,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1766, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 14:13:29,514 INFO L87 Difference]: Start difference. First operand 246 states and 697 transitions. Second operand has 45 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 44 states have internal predecessors, (57), 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 14:13:50,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:13:50,097 INFO L93 Difference]: Finished difference Result 764 states and 2008 transitions. [2022-12-14 14:13:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 14:13:50,098 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 44 states have internal predecessors, (57), 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 11 [2022-12-14 14:13:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:13:50,101 INFO L225 Difference]: With dead ends: 764 [2022-12-14 14:13:50,101 INFO L226 Difference]: Without dead ends: 758 [2022-12-14 14:13:50,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1442 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=815, Invalid=4735, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 14:13:50,102 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 873 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:13:50,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 349 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 14:13:50,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-12-14 14:13:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 366. [2022-12-14 14:13:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 361 states have (on average 2.9833795013850417) internal successors, (1077), 365 states have internal predecessors, (1077), 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 14:13:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 1077 transitions. [2022-12-14 14:13:50,113 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 1077 transitions. Word has length 11 [2022-12-14 14:13:50,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:13:50,113 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 1077 transitions. [2022-12-14 14:13:50,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 44 states have internal predecessors, (57), 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 14:13:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 1077 transitions. [2022-12-14 14:13:50,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 14:13:50,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:50,115 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1] [2022-12-14 14:13:50,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (24)] Ended with exit code 0 [2022-12-14 14:13:50,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2022-12-14 14:13:50,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-12-14 14:13:50,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:50,717 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:13:50,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:50,718 INFO L85 PathProgramCache]: Analyzing trace with hash -832647407, now seen corresponding path program 3 times [2022-12-14 14:13:50,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:13:50,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979994321] [2022-12-14 14:13:50,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:13:50,720 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 14:13:50,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:13:50,722 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:13:50,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (27)] Waiting until timeout for monitored process [2022-12-14 14:13:50,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-14 14:13:50,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:50,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 14:13:50,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:50,948 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:50,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:51,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:53,778 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:53,778 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:13:53,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979994321] [2022-12-14 14:13:53,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979994321] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:53,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [545250959] [2022-12-14 14:13:53,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:13:53,778 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:13:53,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:13:53,779 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:13:53,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-12-14 14:13:54,317 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-14 14:13:54,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:54,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 14:13:54,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:54,374 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:54,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:54,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:57,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [545250959] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:57,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574109714] [2022-12-14 14:13:57,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:13:57,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:57,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:57,348 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:57,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-12-14 14:13:59,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-14 14:13:59,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:13:59,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 14:13:59,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:59,152 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:13:59,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:13:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:59,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:13:59,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574109714] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:13:59,587 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:13:59,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 11, 11] total 32 [2022-12-14 14:13:59,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898057363] [2022-12-14 14:13:59,587 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:13:59,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-14 14:13:59,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:13:59,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-14 14:13:59,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=800, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 14:13:59,588 INFO L87 Difference]: Start difference. First operand 366 states and 1077 transitions. Second operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 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 14:14:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:14:15,405 INFO L93 Difference]: Finished difference Result 3713 states and 11359 transitions. [2022-12-14 14:14:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 14:14:15,407 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 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 12 [2022-12-14 14:14:15,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:14:15,418 INFO L225 Difference]: With dead ends: 3713 [2022-12-14 14:14:15,418 INFO L226 Difference]: Without dead ends: 3713 [2022-12-14 14:14:15,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=618, Invalid=1274, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 14:14:15,419 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2364 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:14:15,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 312 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 14:14:15,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-12-14 14:14:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 378. [2022-12-14 14:14:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 2.9517426273458445) internal successors, (1101), 377 states have internal predecessors, (1101), 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 14:14:15,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 1101 transitions. [2022-12-14 14:14:15,445 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 1101 transitions. Word has length 12 [2022-12-14 14:14:15,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:14:15,445 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 1101 transitions. [2022-12-14 14:14:15,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 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 14:14:15,446 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 1101 transitions. [2022-12-14 14:14:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:14:15,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:14:15,446 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1] [2022-12-14 14:14:15,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2022-12-14 14:14:15,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (27)] Forceful destruction successful, exit code 0 [2022-12-14 14:14:15,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-12-14 14:14:16,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:14:16,049 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:14:16,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:14:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1637111181, now seen corresponding path program 3 times [2022-12-14 14:14:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:14:16,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592843291] [2022-12-14 14:14:16,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:14:16,053 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 14:14:16,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:14:16,054 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:14:16,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (30)] Waiting until timeout for monitored process [2022-12-14 14:14:16,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:14:16,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:14:16,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 14:14:16,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:14:16,287 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:14:16,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:14:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:14:16,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:14:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:14:17,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:14:17,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592843291] [2022-12-14 14:14:17,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592843291] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:14:17,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1208126818] [2022-12-14 14:14:17,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:14:17,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:14:17,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:14:17,558 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:14:17,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2022-12-14 14:14:17,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:14:17,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:14:17,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 14:14:17,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:14:17,945 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:14:17,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:14:18,661 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 13 treesize of output 9 [2022-12-14 14:14:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:14:18,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:14:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:14:21,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1208126818] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:14:21,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710875367] [2022-12-14 14:14:21,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:14:21,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:14:21,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:14:21,037 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:14:21,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-12-14 14:14:21,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:14:21,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:14:21,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 14:14:21,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:14:22,063 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:14:22,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:14:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:14:23,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710875367] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:14:23,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:14:23,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 11, 11, 11, 11] total 56 [2022-12-14 14:14:23,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988929257] [2022-12-14 14:14:23,779 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:14:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-14 14:14:23,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:14:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-14 14:14:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=2793, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 14:14:23,781 INFO L87 Difference]: Start difference. First operand 378 states and 1101 transitions. Second operand has 58 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 57 states have internal predecessors, (70), 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 14:14:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:14:50,874 INFO L93 Difference]: Finished difference Result 1259 states and 3220 transitions. [2022-12-14 14:14:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-14 14:14:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 57 states have internal predecessors, (70), 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 13 [2022-12-14 14:14:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:14:50,879 INFO L225 Difference]: With dead ends: 1259 [2022-12-14 14:14:50,879 INFO L226 Difference]: Without dead ends: 1245 [2022-12-14 14:14:50,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3733 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=2285, Invalid=10371, Unknown=0, NotChecked=0, Total=12656 [2022-12-14 14:14:50,881 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3327 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 5575 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 5692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 5575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:14:50,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 735 Invalid, 5692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 5575 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-12-14 14:14:50,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-12-14 14:14:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 581. [2022-12-14 14:14:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 576 states have (on average 3.125) internal successors, (1800), 580 states have internal predecessors, (1800), 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 14:14:50,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1800 transitions. [2022-12-14 14:14:50,894 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1800 transitions. Word has length 13 [2022-12-14 14:14:50,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:14:50,895 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 1800 transitions. [2022-12-14 14:14:50,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 57 states have internal predecessors, (70), 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 14:14:50,895 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1800 transitions. [2022-12-14 14:14:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:14:50,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:14:50,895 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:14:50,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-12-14 14:14:51,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (30)] Ended with exit code 0 [2022-12-14 14:14:51,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2022-12-14 14:14:51,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:14:51,498 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:14:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:14:51,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2099706681, now seen corresponding path program 2 times [2022-12-14 14:14:51,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:14:51,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218912184] [2022-12-14 14:14:51,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:14:51,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:14:51,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:14:51,503 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:14:51,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (33)] Waiting until timeout for monitored process [2022-12-14 14:14:51,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:14:51,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:14:51,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 14:14:51,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:14:51,702 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:14:51,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:14:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:14:51,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:14:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:14:53,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:14:53,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218912184] [2022-12-14 14:14:53,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218912184] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:14:53,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [423245886] [2022-12-14 14:14:53,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:14:53,261 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:14:53,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:14:53,262 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:14:53,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-12-14 14:14:53,485 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:14:53,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:14:53,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 14:14:53,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:14:53,532 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:14:53,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:14:53,564 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 15 treesize of output 11 [2022-12-14 14:14:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:14:53,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:14:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:14:54,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [423245886] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:14:54,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926262370] [2022-12-14 14:14:54,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:14:54,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:14:54,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:14:54,516 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:14:54,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-12-14 14:14:54,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:14:54,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:14:54,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 14:14:54,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:14:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:14:54,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:14:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:14:55,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926262370] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:14:55,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:14:55,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 8, 8] total 35 [2022-12-14 14:14:55,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338394701] [2022-12-14 14:14:55,179 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:14:55,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-14 14:14:55,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:14:55,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-14 14:14:55,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=978, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 14:14:55,181 INFO L87 Difference]: Start difference. First operand 581 states and 1800 transitions. Second operand has 36 states, 36 states have (on average 1.5) internal successors, (54), 35 states have internal predecessors, (54), 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 14:15:10,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:15:10,710 INFO L93 Difference]: Finished difference Result 1202 states and 3491 transitions. [2022-12-14 14:15:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 14:15:10,712 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.5) internal successors, (54), 35 states have internal predecessors, (54), 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 13 [2022-12-14 14:15:10,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:15:10,720 INFO L225 Difference]: With dead ends: 1202 [2022-12-14 14:15:10,720 INFO L226 Difference]: Without dead ends: 1202 [2022-12-14 14:15:10,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=968, Invalid=3064, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 14:15:10,721 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 613 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:15:10,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 220 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 14:15:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-12-14 14:15:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 742. [2022-12-14 14:15:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 737 states have (on average 3.1628222523744913) internal successors, (2331), 741 states have internal predecessors, (2331), 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 14:15:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 2331 transitions. [2022-12-14 14:15:10,736 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 2331 transitions. Word has length 13 [2022-12-14 14:15:10,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:15:10,736 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 2331 transitions. [2022-12-14 14:15:10,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.5) internal successors, (54), 35 states have internal predecessors, (54), 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 14:15:10,736 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 2331 transitions. [2022-12-14 14:15:10,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:15:10,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:15:10,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:15:10,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2022-12-14 14:15:10,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2022-12-14 14:15:11,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (33)] Ended with exit code 0 [2022-12-14 14:15:11,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:15:11,339 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:15:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:15:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1673047046, now seen corresponding path program 1 times [2022-12-14 14:15:11,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:15:11,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556544856] [2022-12-14 14:15:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:15:11,341 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 14:15:11,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:15:11,342 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:15:11,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (36)] Waiting until timeout for monitored process [2022-12-14 14:15:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:15:11,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:15:11,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:15:11,462 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 14:15:11,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:15:11,462 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:15:11,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556544856] [2022-12-14 14:15:11,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556544856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:15:11,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:15:11,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:15:11,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580569152] [2022-12-14 14:15:11,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:15:11,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:15:11,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:15:11,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:15:11,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:15:11,464 INFO L87 Difference]: Start difference. First operand 742 states and 2331 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14:15:11,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:15:11,556 INFO L93 Difference]: Finished difference Result 757 states and 2355 transitions. [2022-12-14 14:15:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:15:11,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2022-12-14 14:15:11,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:15:11,561 INFO L225 Difference]: With dead ends: 757 [2022-12-14 14:15:11,561 INFO L226 Difference]: Without dead ends: 725 [2022-12-14 14:15:11,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 14:15:11,561 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:15:11,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:15:11,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-12-14 14:15:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 723. [2022-12-14 14:15:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 718 states have (on average 3.167130919220056) internal successors, (2274), 722 states have internal predecessors, (2274), 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 14:15:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2274 transitions. [2022-12-14 14:15:11,574 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2274 transitions. Word has length 14 [2022-12-14 14:15:11,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:15:11,575 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 2274 transitions. [2022-12-14 14:15:11,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14:15:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2274 transitions. [2022-12-14 14:15:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 14:15:11,575 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:15:11,575 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:15:11,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (36)] Ended with exit code 0 [2022-12-14 14:15:11,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:15:11,776 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:15:11,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:15:11,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1317085148, now seen corresponding path program 3 times [2022-12-14 14:15:11,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:15:11,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099447898] [2022-12-14 14:15:11,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:15:11,777 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 14:15:11,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:15:11,778 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:15:11,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (37)] Waiting until timeout for monitored process [2022-12-14 14:15:12,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 14:15:12,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:15:12,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 14:15:12,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:15:12,107 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:15:12,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:15:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:15:12,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:15:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:15:14,352 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:15:14,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099447898] [2022-12-14 14:15:14,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099447898] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:15:14,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1645064591] [2022-12-14 14:15:14,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:15:14,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:15:14,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:15:14,354 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:15:14,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-12-14 14:15:15,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 14:15:15,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:15:15,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 14:15:15,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:15:15,118 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:15:15,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:15:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:15:15,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:15:19,743 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:15:19,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1645064591] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:15:19,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160142129] [2022-12-14 14:15:19,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:15:19,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:15:19,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:15:19,744 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:15:19,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-12-14 14:15:20,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 14:15:20,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:15:20,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 14:15:20,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:15:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:15:21,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:15:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:15:23,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160142129] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:15:23,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:15:23,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 10, 11, 10, 10] total 56 [2022-12-14 14:15:23,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116035574] [2022-12-14 14:15:23,394 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:15:23,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-12-14 14:15:23,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:15:23,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-12-14 14:15:23,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=2870, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 14:15:23,395 INFO L87 Difference]: Start difference. First operand 723 states and 2274 transitions. Second operand has 57 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 56 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:15:43,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:01,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:17:01,492 INFO L93 Difference]: Finished difference Result 1794 states and 5118 transitions. [2022-12-14 14:17:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-12-14 14:17:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 56 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 14:17:01,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:17:01,500 INFO L225 Difference]: With dead ends: 1794 [2022-12-14 14:17:01,500 INFO L226 Difference]: Without dead ends: 1794 [2022-12-14 14:17:01,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4010 ImplicationChecksByTransitivity, 71.9s TimeCoverageRelationStatistics Valid=2112, Invalid=13140, Unknown=0, NotChecked=0, Total=15252 [2022-12-14 14:17:01,502 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1470 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 5855 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 5911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 5855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:17:01,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 610 Invalid, 5911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 5855 Invalid, 0 Unknown, 0 Unchecked, 34.6s Time] [2022-12-14 14:17:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-12-14 14:17:01,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 940. [2022-12-14 14:17:01,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 3.2385026737967912) internal successors, (3028), 939 states have internal predecessors, (3028), 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 14:17:01,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 3028 transitions. [2022-12-14 14:17:01,524 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 3028 transitions. Word has length 15 [2022-12-14 14:17:01,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:17:01,524 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 3028 transitions. [2022-12-14 14:17:01,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 56 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:17:01,524 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 3028 transitions. [2022-12-14 14:17:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:17:01,525 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:17:01,525 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:17:01,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2022-12-14 14:17:01,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (37)] Ended with exit code 0 [2022-12-14 14:17:01,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2022-12-14 14:17:02,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:17:02,127 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:17:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:17:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash -962726009, now seen corresponding path program 4 times [2022-12-14 14:17:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:17:02,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899724106] [2022-12-14 14:17:02,128 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:17:02,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:17:02,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:17:02,130 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:17:02,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (40)] Waiting until timeout for monitored process [2022-12-14 14:17:02,378 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:17:02,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:17:02,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 14:17:02,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:17:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:17:02,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:17:03,596 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 35 treesize of output 29 [2022-12-14 14:17:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:17:04,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:17:04,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899724106] [2022-12-14 14:17:04,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899724106] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:17:04,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1228242035] [2022-12-14 14:17:04,591 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:17:04,591 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:17:04,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:17:04,592 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:17:04,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2022-12-14 14:17:04,888 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:17:04,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:17:04,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:17:04,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:17:04,942 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:17:04,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:17:06,054 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:17:06,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:17:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:17:09,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1228242035] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:17:09,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729675472] [2022-12-14 14:17:09,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:17:09,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:17:09,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:17:09,475 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:17:09,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-12-14 14:17:09,590 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:17:09,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:17:09,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 14:17:09,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:17:09,648 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:17:09,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:17:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:17:11,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:17:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:17:13,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729675472] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:17:13,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:17:13,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13, 12, 12] total 68 [2022-12-14 14:17:13,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042516579] [2022-12-14 14:17:13,210 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:17:13,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-12-14 14:17:13,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:17:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-12-14 14:17:13,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=4332, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 14:17:13,211 INFO L87 Difference]: Start difference. First operand 940 states and 3028 transitions. Second operand has 70 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 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 14:18:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:18:41,599 INFO L93 Difference]: Finished difference Result 5380 states and 15884 transitions. [2022-12-14 14:18:41,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-12-14 14:18:41,600 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 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 17 [2022-12-14 14:18:41,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:18:41,614 INFO L225 Difference]: With dead ends: 5380 [2022-12-14 14:18:41,615 INFO L226 Difference]: Without dead ends: 5380 [2022-12-14 14:18:41,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9160 ImplicationChecksByTransitivity, 84.3s TimeCoverageRelationStatistics Valid=4536, Invalid=24194, Unknown=0, NotChecked=0, Total=28730 [2022-12-14 14:18:41,618 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7287 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 4964 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7287 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 5019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 4964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:18:41,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7287 Valid, 593 Invalid, 5019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 4964 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-12-14 14:18:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2022-12-14 14:18:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 1020. [2022-12-14 14:18:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 1015 states have (on average 3.3300492610837438) internal successors, (3380), 1019 states have internal predecessors, (3380), 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 14:18:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 3380 transitions. [2022-12-14 14:18:41,686 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 3380 transitions. Word has length 17 [2022-12-14 14:18:41,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:18:41,686 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 3380 transitions. [2022-12-14 14:18:41,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 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 14:18:41,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 3380 transitions. [2022-12-14 14:18:41,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:18:41,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:18:41,688 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:18:41,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2022-12-14 14:18:41,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (40)] Forceful destruction successful, exit code 0 [2022-12-14 14:18:42,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2022-12-14 14:18:42,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:18:42,290 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:18:42,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:18:42,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1738501508, now seen corresponding path program 5 times [2022-12-14 14:18:42,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:18:42,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733497603] [2022-12-14 14:18:42,292 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 14:18:42,292 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 14:18:42,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:18:42,293 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:18:42,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (43)] Waiting until timeout for monitored process [2022-12-14 14:18:42,500 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-12-14 14:18:42,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:18:42,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 14:18:42,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:18:42,575 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:18:42,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:18:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:18:43,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:18:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:18:46,462 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:18:46,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733497603] [2022-12-14 14:18:46,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733497603] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:18:46,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [567112991] [2022-12-14 14:18:46,463 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 14:18:46,463 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:18:46,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:18:46,464 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:18:46,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2022-12-14 14:18:47,096 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-12-14 14:18:47,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:18:47,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 14:18:47,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:18:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:18:48,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:18:50,550 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:18:50,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [567112991] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:18:50,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315402198] [2022-12-14 14:18:50,550 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 14:18:50,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:18:50,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:18:50,551 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:18:50,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-12-14 14:18:51,992 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-12-14 14:18:51,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:18:52,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 14:18:52,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:18:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:18:53,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:18:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:18:54,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315402198] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:18:54,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:18:54,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13, 13, 13] total 70 [2022-12-14 14:18:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855944092] [2022-12-14 14:18:54,564 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:18:54,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-12-14 14:18:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:18:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-12-14 14:18:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=755, Invalid=4357, Unknown=0, NotChecked=0, Total=5112 [2022-12-14 14:18:54,566 INFO L87 Difference]: Start difference. First operand 1020 states and 3380 transitions. Second operand has 72 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 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 14:19:29,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:29,090 INFO L93 Difference]: Finished difference Result 1678 states and 4926 transitions. [2022-12-14 14:19:29,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-14 14:19:29,093 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 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 17 [2022-12-14 14:19:29,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:29,097 INFO L225 Difference]: With dead ends: 1678 [2022-12-14 14:19:29,097 INFO L226 Difference]: Without dead ends: 1646 [2022-12-14 14:19:29,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4272 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=2286, Invalid=11994, Unknown=0, NotChecked=0, Total=14280 [2022-12-14 14:19:29,098 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1957 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 5552 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 5638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 5552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:29,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 822 Invalid, 5638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 5552 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 14:19:29,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-12-14 14:19:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1065. [2022-12-14 14:19:29,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 1060 states have (on average 3.0575471698113206) internal successors, (3241), 1064 states have internal predecessors, (3241), 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 14:19:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 3241 transitions. [2022-12-14 14:19:29,118 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 3241 transitions. Word has length 17 [2022-12-14 14:19:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:29,118 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 3241 transitions. [2022-12-14 14:19:29,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 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 14:19:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 3241 transitions. [2022-12-14 14:19:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:19:29,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:29,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:19:29,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (43)] Ended with exit code 0 [2022-12-14 14:19:29,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:29,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:29,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:29,722 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:19:29,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:29,724 INFO L85 PathProgramCache]: Analyzing trace with hash 121386150, now seen corresponding path program 1 times [2022-12-14 14:19:29,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:19:29,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936350464] [2022-12-14 14:19:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:29,725 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 14:19:29,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:19:29,728 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:19:29,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (46)] Waiting until timeout for monitored process [2022-12-14 14:19:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:29,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:19:29,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:30,100 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:30,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 40 [2022-12-14 14:19:30,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:30,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:30,293 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:19:30,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 183 treesize of output 91 [2022-12-14 14:19:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:36,278 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:19:36,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936350464] [2022-12-14 14:19:36,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936350464] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:36,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2013839353] [2022-12-14 14:19:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:36,278 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:19:36,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:19:36,279 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:19:36,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2022-12-14 14:19:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:36,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 14:19:36,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:36,861 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:36,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:19:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:36,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:37,091 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:19:37,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 89 treesize of output 68 [2022-12-14 14:19:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:37,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2013839353] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:37,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545103132] [2022-12-14 14:19:37,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:37,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:37,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:19:37,645 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:19:37,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-12-14 14:19:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:37,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:19:37,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:38,067 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:38,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 40 [2022-12-14 14:19:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:38,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:38,370 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:19:38,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 183 treesize of output 91 [2022-12-14 14:19:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:39,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545103132] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:39,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:19:39,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6, 4, 6, 4] total 13 [2022-12-14 14:19:39,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631390058] [2022-12-14 14:19:39,679 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:19:39,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 14:19:39,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:19:39,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 14:19:39,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-12-14 14:19:39,680 INFO L87 Difference]: Start difference. First operand 1065 states and 3241 transitions. Second operand has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 14:19:40,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:40,430 INFO L93 Difference]: Finished difference Result 1128 states and 3380 transitions. [2022-12-14 14:19:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:19:40,431 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 17 [2022-12-14 14:19:40,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:40,435 INFO L225 Difference]: With dead ends: 1128 [2022-12-14 14:19:40,435 INFO L226 Difference]: Without dead ends: 1111 [2022-12-14 14:19:40,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-14 14:19:40,436 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 25 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:40,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:19:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-12-14 14:19:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1067. [2022-12-14 14:19:40,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 3.054613935969868) internal successors, (3244), 1066 states have internal predecessors, (3244), 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 14:19:40,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 3244 transitions. [2022-12-14 14:19:40,453 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 3244 transitions. Word has length 17 [2022-12-14 14:19:40,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:40,453 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 3244 transitions. [2022-12-14 14:19:40,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 14:19:40,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 3244 transitions. [2022-12-14 14:19:40,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:19:40,454 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:40,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:19:40,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (46)] Ended with exit code 0 [2022-12-14 14:19:40,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:40,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2022-12-14 14:19:41,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:41,056 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:19:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1652611548, now seen corresponding path program 2 times [2022-12-14 14:19:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:19:41,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596884986] [2022-12-14 14:19:41,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:19:41,058 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 14:19:41,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:19:41,061 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:19:41,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (49)] Waiting until timeout for monitored process [2022-12-14 14:19:41,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:19:41,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:19:41,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 14:19:41,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:41,413 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:41,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 18 [2022-12-14 14:19:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:41,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:41,728 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:19:41,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 89 treesize of output 68 [2022-12-14 14:19:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:42,311 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:19:42,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596884986] [2022-12-14 14:19:42,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596884986] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:42,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [194182979] [2022-12-14 14:19:42,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:19:42,312 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:19:42,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:19:42,313 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:19:42,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2022-12-14 14:19:42,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:19:42,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:19:42,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 14:19:42,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:42,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:19:42,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:19:42,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:19:42,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 14:19:42,791 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 6 treesize of output 5 [2022-12-14 14:19:42,997 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 6 treesize of output 5 [2022-12-14 14:19:43,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:19:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:19:43,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:43,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [194182979] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:43,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903330113] [2022-12-14 14:19:43,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:19:43,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:43,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:19:43,846 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:19:43,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-12-14 14:19:44,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:19:44,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:19:44,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:19:44,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:44,491 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:44,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 46 [2022-12-14 14:19:44,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:44,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:44,956 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:19:44,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 226 treesize of output 99 [2022-12-14 14:19:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:46,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903330113] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:46,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:19:46,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 8, 5, 6, 4] total 23 [2022-12-14 14:19:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261823429] [2022-12-14 14:19:46,646 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:19:46,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 14:19:46,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:19:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 14:19:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=472, Unknown=2, NotChecked=0, Total=600 [2022-12-14 14:19:46,647 INFO L87 Difference]: Start difference. First operand 1067 states and 3244 transitions. Second operand has 25 states, 24 states have (on average 2.25) internal successors, (54), 24 states have internal predecessors, (54), 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 14:19:48,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:48,500 INFO L93 Difference]: Finished difference Result 1142 states and 3409 transitions. [2022-12-14 14:19:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:19:48,502 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.25) internal successors, (54), 24 states have internal predecessors, (54), 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 17 [2022-12-14 14:19:48,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:48,505 INFO L225 Difference]: With dead ends: 1142 [2022-12-14 14:19:48,505 INFO L226 Difference]: Without dead ends: 1121 [2022-12-14 14:19:48,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 66 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=178, Invalid=632, Unknown=2, NotChecked=0, Total=812 [2022-12-14 14:19:48,505 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 39 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:48,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 13 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 14:19:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2022-12-14 14:19:48,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1065. [2022-12-14 14:19:48,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 1060 states have (on average 3.0556603773584907) internal successors, (3239), 1064 states have internal predecessors, (3239), 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 14:19:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 3239 transitions. [2022-12-14 14:19:48,528 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 3239 transitions. Word has length 17 [2022-12-14 14:19:48,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:48,529 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 3239 transitions. [2022-12-14 14:19:48,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.25) internal successors, (54), 24 states have internal predecessors, (54), 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 14:19:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 3239 transitions. [2022-12-14 14:19:48,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:19:48,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:48,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:19:48,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:48,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:48,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (49)] Ended with exit code 0 [2022-12-14 14:19:49,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:19:49,132 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:19:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1250012882, now seen corresponding path program 3 times [2022-12-14 14:19:49,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:19:49,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635520449] [2022-12-14 14:19:49,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:19:49,135 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 14:19:49,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:19:49,138 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:19:49,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (52)] Waiting until timeout for monitored process [2022-12-14 14:19:49,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 14:19:49,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:19:49,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 14:19:49,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:49,479 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:49,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 18 [2022-12-14 14:19:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:49,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:49,778 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:19:49,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 74 treesize of output 58 [2022-12-14 14:19:50,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:50,209 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:19:50,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635520449] [2022-12-14 14:19:50,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635520449] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:50,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1045005296] [2022-12-14 14:19:50,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:19:50,210 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:19:50,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:19:50,211 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:19:50,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2022-12-14 14:19:50,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 14:19:50,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:19:50,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 14:19:50,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:50,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:19:50,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:19:50,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:19:50,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 14:19:50,697 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 6 treesize of output 5 [2022-12-14 14:19:50,924 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 6 treesize of output 5 [2022-12-14 14:19:51,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:19:51,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:19:51,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:51,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1045005296] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:51,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352305679] [2022-12-14 14:19:51,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:19:51,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:51,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:19:51,673 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:19:51,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2022-12-14 14:19:51,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 14:19:51,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:19:51,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:19:51,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:52,348 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:52,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 46 [2022-12-14 14:19:52,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:52,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:52,897 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:19:52,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 187 treesize of output 91 [2022-12-14 14:19:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:54,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352305679] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:54,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:19:54,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 8, 5, 6, 4] total 22 [2022-12-14 14:19:54,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657761101] [2022-12-14 14:19:54,443 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:19:54,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 14:19:54,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:19:54,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 14:19:54,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=443, Unknown=1, NotChecked=0, Total=552 [2022-12-14 14:19:54,444 INFO L87 Difference]: Start difference. First operand 1065 states and 3239 transitions. Second operand has 24 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 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 14:19:55,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:55,792 INFO L93 Difference]: Finished difference Result 1199 states and 3529 transitions. [2022-12-14 14:19:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:19:55,794 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 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 17 [2022-12-14 14:19:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:55,797 INFO L225 Difference]: With dead ends: 1199 [2022-12-14 14:19:55,797 INFO L226 Difference]: Without dead ends: 1169 [2022-12-14 14:19:55,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=139, Invalid=562, Unknown=1, NotChecked=0, Total=702 [2022-12-14 14:19:55,798 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 66 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:55,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 18 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 14:19:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2022-12-14 14:19:55,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1062. [2022-12-14 14:19:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1057 states have (on average 3.055818353831599) internal successors, (3230), 1061 states have internal predecessors, (3230), 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 14:19:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 3230 transitions. [2022-12-14 14:19:55,819 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 3230 transitions. Word has length 17 [2022-12-14 14:19:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:55,820 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 3230 transitions. [2022-12-14 14:19:55,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 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 14:19:55,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 3230 transitions. [2022-12-14 14:19:55,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:19:55,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:55,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:19:55,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (52)] Ended with exit code 0 [2022-12-14 14:19:56,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:56,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2022-12-14 14:19:56,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:19:56,424 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:19:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1197319258, now seen corresponding path program 4 times [2022-12-14 14:19:56,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:19:56,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993312980] [2022-12-14 14:19:56,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:19:56,426 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 14:19:56,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:19:56,429 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:19:56,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (55)] Waiting until timeout for monitored process [2022-12-14 14:19:56,580 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:19:56,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:19:56,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-14 14:19:56,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:56,595 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 26 treesize of output 24 [2022-12-14 14:19:56,835 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 38 treesize of output 34 [2022-12-14 14:19:56,963 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:56,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 46 [2022-12-14 14:19:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:19:57,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:57,512 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv3 32) c_~A~0.offset)) (.cse3 (bvadd (_ bv2 32) c_~A~0.offset)) (.cse4 (bvadd c_~A~0.offset (_ bv1 32)))) (and (forall ((v_ArrVal_1581 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1581) c_~A~0.base))) (concat (concat (concat (select .cse1 .cse2) (select .cse1 .cse3)) (select .cse1 .cse4)) (select .cse1 c_~A~0.offset))))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) .cse0))) (= (bvadd c_~counter~0 (bvneg .cse0)) (_ bv0 32))))) (forall ((v_ArrVal_1581 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse5 (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1581) c_~A~0.base))) (concat (concat (concat (select .cse6 .cse2) (select .cse6 .cse3)) (select .cse6 .cse4)) (select .cse6 c_~A~0.offset))))) (or (not (bvsge .cse5 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse5)) (_ bv0 32))))))) is different from false [2022-12-14 14:19:57,808 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:19:57,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 626 treesize of output 298 [2022-12-14 14:19:57,840 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:57,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 233 treesize of output 205 [2022-12-14 14:19:57,867 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:19:57,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 205 treesize of output 177 [2022-12-14 14:20:10,217 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse4 (= c_~A~0.base |c_ULTIMATE.start_main_~#t2~0#1.base|))) (let ((.cse24 (not .cse4))) (let ((.cse121 (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse244 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse243 (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116))) (or (= (bvadd c_~counter~0 (bvneg .cse243) .cse244) (_ bv0 32)) (not (bvsle .cse244 (_ bv0 32))) (not (bvsge .cse243 (_ bv0 32)))))) .cse24)) (.cse17 (or (and (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8))) (let ((.cse239 (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse240 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg .cse239) .cse240) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse240))))))) (not (bvsge .cse239 (_ bv0 32)))))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8))) (let ((.cse241 (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116))) (or (not (bvsge .cse241 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse242 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg .cse241) .cse242) (_ bv0 32)) (not (bvsle .cse242 (_ bv0 32)))))))))) .cse24)) (.cse107 (or (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse236 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse235 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120))) (or (= (bvadd (bvneg .cse235) c_~counter~0 .cse236) (_ bv0 32)) (not (bvsle .cse236 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse236) (bvadd (_ bv2147483647 32) .cse235)))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse237 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) (.cse238 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse237) c_~counter~0 .cse238) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse238) (bvadd (_ bv2147483647 32) .cse237))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse238)))))))) .cse24)) (.cse120 (= (bvmul (_ bv4 32) |c_thread1Thread1of1ForFork1_~i~0#1|) (_ bv0 32))) (.cse128 (or (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse233 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) (.cse234 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse233) c_~counter~0 .cse234) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse234) (bvadd (_ bv2147483647 32) .cse233))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse234))))))) .cse24)) (.cse137 (or .cse24 (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse232 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse231 (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116))) (or (= (bvadd c_~counter~0 (bvneg .cse231) .cse232) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse232)))) (not (bvsge .cse231 (_ bv0 32)))))))) (.cse140 (or .cse24 (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse230 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse229 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120))) (or (= (bvadd (bvneg .cse229) c_~counter~0 .cse230) (_ bv0 32)) (not (bvsle .cse230 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse230) (bvadd (_ bv2147483647 32) .cse229))))))))) (and (or (and (or (and (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse0 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsge .cse0 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse1 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse1 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse0) .cse1) (_ bv0 32)))))))) (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse2 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsge .cse2 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse3 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse3)))) (= (bvadd c_~counter~0 (bvneg .cse2) .cse3) (_ bv0 32))))))))) .cse4) (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse5 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse6 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsle (bvadd c_~counter~0 .cse5) (bvadd (_ bv2147483647 32) .cse6))) (not (bvsle .cse5 (_ bv0 32))) (= (bvadd c_~counter~0 .cse5 (bvneg .cse6)) (_ bv0 32))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse8 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse7 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle (bvadd c_~counter~0 .cse7) (bvadd (_ bv2147483647 32) .cse8))) (= (bvadd c_~counter~0 .cse7 (bvneg .cse8)) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse7)))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse10 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107))) (or (forall ((v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse9 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse9 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse10) .cse9) (_ bv0 32))))) (not (bvsge .cse10 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse11 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsge .cse11 (_ bv0 32))) (forall ((v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse12 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse12)))) (= (bvadd c_~counter~0 (bvneg .cse11) .cse12) (_ bv0 32))))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse13 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse14 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse13) .cse14)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse14))))))) (not (bvsge .cse13 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse16 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse15 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse15 (_ bv0 32))) (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse16) .cse15))))) (not (bvsge .cse16 (_ bv0 32))))))) .cse4) .cse17 (or (and (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8))) (let ((.cse18 (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse20 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse19 (concat (concat .cse20 v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg .cse18) .cse19) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse19)))) (= (bvadd (bvneg (concat (concat .cse20 v_arrayElimCell_110) v_arrayElimCell_107)) c_~counter~0 .cse19) (_ bv0 32)))))) (not (bvsge .cse18 (_ bv0 32)))))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8))) (let ((.cse21 (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse23 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse22 (concat (concat .cse23 v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg .cse21) .cse22) (_ bv0 32)) (not (bvsle .cse22 (_ bv0 32))) (= (bvadd (bvneg (concat (concat .cse23 v_arrayElimCell_110) v_arrayElimCell_107)) c_~counter~0 .cse22) (_ bv0 32)))))) (not (bvsge .cse21 (_ bv0 32))))))) .cse24) (or .cse4 (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse26 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse25 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse25) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse25)))) (= (bvadd c_~counter~0 (bvneg .cse26) .cse25) (_ bv0 32))))) (not (bvsge .cse26 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse27 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsge .cse27 (_ bv0 32))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse28 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse28) (_ bv0 32)) (not (bvsle .cse28 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse27) .cse28) (_ bv0 32)))))))))) (or .cse24 (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse31 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse29 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) (.cse30 (concat (concat .cse31 v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse29) c_~counter~0 .cse30) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse30) (bvadd (_ bv2147483647 32) .cse29))) (= (bvadd (bvneg (concat (concat .cse31 v_arrayElimCell_110) v_arrayElimCell_112)) c_~counter~0 .cse30) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse30)))))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse34 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse32 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) (.cse33 (concat (concat .cse34 v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse32) c_~counter~0 .cse33) (_ bv0 32)) (not (bvsle .cse33 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse33) (bvadd (_ bv2147483647 32) .cse32))) (= (bvadd (bvneg (concat (concat .cse34 v_arrayElimCell_110) v_arrayElimCell_112)) c_~counter~0 .cse33) (_ bv0 32)))))))) (or .cse4 (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse35 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse36 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse35)))) (= (bvadd c_~counter~0 (bvneg .cse36) .cse35) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse35) (bvadd .cse36 (_ bv2147483647 32))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse37 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse38 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsle .cse37 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse38) .cse37) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse37) (bvadd .cse38 (_ bv2147483647 32))))))))) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse39 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsge .cse39 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse40 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse40)))) (= (bvadd c_~counter~0 (bvneg .cse39) .cse40) (_ bv0 32)))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse42 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse41 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse41 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse42) .cse41) (_ bv0 32))))) (not (bvsge .cse42 (_ bv0 32))))))) .cse4) (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse45 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse43 (concat (concat .cse45 v_arrayElimCell_109) v_arrayElimCell_107)) (.cse44 (concat (concat .cse45 v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse43)))) (= (bvadd (bvneg .cse44) c_~counter~0 .cse43) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse43) (bvadd (_ bv2147483647 32) .cse44))))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse48 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse46 (concat (concat .cse48 v_arrayElimCell_109) v_arrayElimCell_107)) (.cse47 (concat (concat .cse48 v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsle .cse46 (_ bv0 32))) (= (bvadd (bvneg .cse47) c_~counter~0 .cse46) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse46) (bvadd (_ bv2147483647 32) .cse47)))))))) .cse4) (or (and (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse49 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsge .cse49 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse50 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse50 (_ bv0 32))) (= (bvadd c_~counter~0 .cse50 (bvneg .cse49)) (_ bv0 32)))))))) (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse51 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsge .cse51 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse52 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 .cse52 (bvneg .cse51)) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse52))))))))))) .cse4) (or .cse4 (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse54 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse53 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse53) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse53)))) (not (bvsle (bvadd c_~counter~0 .cse53) (bvadd .cse54 (_ bv2147483647 32)))) (= (bvadd c_~counter~0 (bvneg .cse54) .cse53) (_ bv0 32))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse56 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse55 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse55) (_ bv0 32)) (not (bvsle .cse55 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse55) (bvadd .cse56 (_ bv2147483647 32)))) (= (bvadd c_~counter~0 (bvneg .cse56) .cse55) (_ bv0 32))))))) (or (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse58 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse57 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse57) (_ bv0 32)) (not (bvsle .cse57 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse57) (bvadd (_ bv2147483647 32) .cse58))) (= (bvadd c_~counter~0 (bvneg .cse58) .cse57) (_ bv0 32))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse60 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse59 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse59) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse59) (bvadd (_ bv2147483647 32) .cse60))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse59)))) (= (bvadd c_~counter~0 (bvneg .cse60) .cse59) (_ bv0 32)))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse61 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsge .cse61 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse62 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse62 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse61) .cse62) (_ bv0 32)))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse64 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse63 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse63)))) (= (bvadd c_~counter~0 (bvneg .cse64) .cse63) (_ bv0 32))))) (not (bvsge .cse64 (_ bv0 32))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse65 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse66 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse65) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse65)))) (= (bvadd c_~counter~0 (bvneg .cse66) .cse65) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse65) (bvadd .cse66 (_ bv2147483647 32))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse67 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse68 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse67) (_ bv0 32)) (not (bvsle .cse67 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse68) .cse67) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse67) (bvadd .cse68 (_ bv2147483647 32)))))))) .cse4) (or (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse69 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse70 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse69) (_ bv0 32)) (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse70) .cse69)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse69)))) (not (bvsle (bvadd c_~counter~0 .cse69) (bvadd (_ bv2147483647 32) .cse70)))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse71 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse72 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse71) (_ bv0 32)) (not (bvsle .cse71 (_ bv0 32))) (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse72) .cse71)) (not (bvsle (bvadd c_~counter~0 .cse71) (bvadd (_ bv2147483647 32) .cse72))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse74 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse73 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse73)))) (not (bvsle (bvadd c_~counter~0 .cse73) (bvadd .cse74 (_ bv2147483647 32)))) (= (bvadd c_~counter~0 (bvneg .cse74) .cse73) (_ bv0 32))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse76 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse75 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse75 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse75) (bvadd .cse76 (_ bv2147483647 32)))) (= (bvadd c_~counter~0 (bvneg .cse76) .cse75) (_ bv0 32)))))) .cse4) (or .cse4 (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse79 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse77 (concat (concat .cse79 v_arrayElimCell_109) v_arrayElimCell_107)) (.cse78 (concat (concat .cse79 v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsle .cse77 (_ bv0 32))) (= (bvadd (bvneg .cse78) c_~counter~0 .cse77) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse77) (bvadd (_ bv2147483647 32) .cse78))))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse82 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse81 (concat (concat .cse82 v_arrayElimCell_109) v_arrayElimCell_107)) (.cse80 (concat (concat .cse82 v_arrayElimCell_110) v_arrayElimCell_112))) (or (= (bvadd (bvneg .cse80) c_~counter~0 .cse81) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse81)))) (not (bvsle (bvadd c_~counter~0 .cse81) (bvadd (_ bv2147483647 32) .cse80))))))))) (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse85 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse83 (concat (concat .cse85 v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsge .cse83 (_ bv0 32))) (forall ((v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse84 (concat (concat .cse85 v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse83) c_~counter~0 .cse84) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse84))))))))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse88 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse86 (concat (concat .cse88 v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsge .cse86 (_ bv0 32))) (forall ((v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse87 (concat (concat .cse88 v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse87 (_ bv0 32))) (= (bvadd (bvneg .cse86) c_~counter~0 .cse87) (_ bv0 32)))))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse89 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsge .cse89 (_ bv0 32))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse90 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse90) (_ bv0 32)) (not (bvsle .cse90 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse89) .cse90) (_ bv0 32)))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse92 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse91 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse91) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse91)))) (= (bvadd c_~counter~0 (bvneg .cse92) .cse91) (_ bv0 32))))) (not (bvsge .cse92 (_ bv0 32))))))) .cse4) (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse95 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse94 (concat (concat .cse95 v_arrayElimCell_110) v_arrayElimCell_107))) (or (forall ((v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse93 (concat (concat .cse95 v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse93 (_ bv0 32))) (= (bvadd (bvneg .cse94) c_~counter~0 .cse93) (_ bv0 32))))) (not (bvsge .cse94 (_ bv0 32))))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse98 (concat v_arrayElimCell_111 v_arrayElimCell_105))) (let ((.cse96 (concat (concat .cse98 v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsge .cse96 (_ bv0 32))) (forall ((v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse97 (concat (concat .cse98 v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse97)))) (= (bvadd (bvneg .cse96) c_~counter~0 .cse97) (_ bv0 32)))))))))) .cse4) (or .cse4 (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse100 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse99 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse99 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse99) (bvadd (_ bv2147483647 32) .cse100))) (= (bvadd c_~counter~0 (bvneg .cse100) .cse99) (_ bv0 32))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse102 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_107)) (.cse101 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle (bvadd c_~counter~0 .cse101) (bvadd (_ bv2147483647 32) .cse102))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse101)))) (= (bvadd c_~counter~0 (bvneg .cse102) .cse101) (_ bv0 32))))))) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse104 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse103 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse103) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse103)))) (= (bvadd c_~counter~0 (bvneg .cse104) .cse103) (_ bv0 32))))) (not (bvsge .cse104 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse105 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_107))) (or (not (bvsge .cse105 (_ bv0 32))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse106 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse106) (_ bv0 32)) (not (bvsle .cse106 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse105) .cse106) (_ bv0 32))))))))) .cse4) .cse107 (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse109 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse108 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse108) .cse109)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse109)))) (not (bvsle (bvadd c_~counter~0 .cse109) (bvadd (_ bv2147483647 32) .cse108)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse110 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse111 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsle .cse110 (_ bv0 32))) (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse111) .cse110)) (not (bvsle (bvadd c_~counter~0 .cse110) (bvadd (_ bv2147483647 32) .cse111))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse113 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse112 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse112) (_ bv0 32)) (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse113) .cse112)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse112))))))) (not (bvsge .cse113 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8))) (let ((.cse115 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_110) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse114 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse114) (_ bv0 32)) (not (bvsle .cse114 (_ bv0 32))) (= (_ bv0 32) (bvadd c_~counter~0 (bvneg .cse115) .cse114))))) (not (bvsge .cse115 (_ bv0 32))))))) .cse4) (or .cse4 (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse116 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse117 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsle .cse116 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse117) .cse116) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse116) (bvadd (_ bv2147483647 32) .cse117)))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_110 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse118 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse119 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_110) v_arrayElimCell_112))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse118)))) (= (bvadd c_~counter~0 (bvneg .cse119) .cse118) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse118) (bvadd (_ bv2147483647 32) .cse119))))))))) .cse120) (or .cse120 (and .cse121 (or (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse123 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse122 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse122) c_~counter~0 .cse123) (_ bv0 32)) (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse123) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse123)))) (not (bvsge .cse122 (_ bv0 32)))))) .cse4) (or (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse124 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse125 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse124) (_ bv0 32)) (= (bvadd (bvneg .cse125) c_~counter~0 .cse124) (_ bv0 32)) (not (bvsle .cse124 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse124) (bvadd .cse125 (_ bv2147483647 32))))))) .cse4) (or .cse4 (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse127 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse126 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse126) c_~counter~0 .cse127) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse127)))) (not (bvsle (bvadd c_~counter~0 .cse127) (bvadd .cse126 (_ bv2147483647 32)))))))) .cse128 (or (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse130 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse129 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse129) c_~counter~0 .cse130) (_ bv0 32)) (not (bvsle .cse130 (_ bv0 32))) (not (bvsge .cse129 (_ bv0 32)))))) .cse4) (or (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse131 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse132 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse131) (_ bv0 32)) (= (bvadd (bvneg .cse132) c_~counter~0 .cse131) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse131)))) (not (bvsle (bvadd c_~counter~0 .cse131) (bvadd .cse132 (_ bv2147483647 32))))))) .cse4) (or .cse4 (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse134 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse133 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse133) c_~counter~0 .cse134) (_ bv0 32)) (not (bvsle .cse134 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse134) (bvadd .cse133 (_ bv2147483647 32)))))))) (or (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse136 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse135 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse135) c_~counter~0 .cse136) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse136)))) (not (bvsge .cse135 (_ bv0 32)))))) .cse4) .cse137 (or (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse139 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse138 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse138) c_~counter~0 .cse139) (_ bv0 32)) (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse139) (_ bv0 32)) (not (bvsle .cse139 (_ bv0 32))) (not (bvsge .cse138 (_ bv0 32)))))) .cse4) .cse140)) (or .cse120 (and (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse141 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsge .cse141 (_ bv0 32))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse142 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse142) (_ bv0 32)) (not (bvsle .cse142 (_ bv0 32))) (= (bvadd c_~counter~0 .cse142 (bvneg .cse141)) (_ bv0 32)))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse143 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsge .cse143 (_ bv0 32))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse144 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse144) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse144)))) (= (bvadd c_~counter~0 .cse144 (bvneg .cse143)) (_ bv0 32))))))))) .cse4) .cse17 (or (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse145 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse146 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse145) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse145)))) (not (bvsle (bvadd c_~counter~0 .cse145) (bvadd (_ bv2147483647 32) .cse146))) (= (bvadd c_~counter~0 .cse145 (bvneg .cse146)) (_ bv0 32))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse147 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse148 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse147) (_ bv0 32)) (not (bvsle .cse147 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse147) (bvadd (_ bv2147483647 32) .cse148))) (= (bvadd c_~counter~0 .cse147 (bvneg .cse148)) (_ bv0 32)))))) .cse4) (or (and (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse150 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8))) (let ((.cse149 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (_ bv0 32) (bvadd c_~counter~0 .cse149 (bvneg .cse150))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse149))))))) (not (bvsge .cse150 (_ bv0 32)))))) (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse151 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsge .cse151 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8))) (let ((.cse152 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (_ bv0 32) (bvadd c_~counter~0 .cse152 (bvneg .cse151))) (not (bvsle .cse152 (_ bv0 32)))))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse153 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsge .cse153 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse154 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse154)))) (= (bvadd c_~counter~0 .cse154 (bvneg .cse153)) (_ bv0 32)))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse155 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsge .cse155 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse156 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse156 (_ bv0 32))) (= (bvadd c_~counter~0 .cse156 (bvneg .cse155)) (_ bv0 32))))))))) .cse4) (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse158 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse157 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle (bvadd c_~counter~0 .cse157) (bvadd .cse158 (_ bv2147483647 32)))) (= (_ bv0 32) (bvadd c_~counter~0 .cse157 (bvneg .cse158))) (not (bvsle .cse157 (_ bv0 32)))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse160 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse159 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle (bvadd c_~counter~0 .cse159) (bvadd .cse160 (_ bv2147483647 32)))) (= (_ bv0 32) (bvadd c_~counter~0 .cse159 (bvneg .cse160))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse159)))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse161 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse162 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse161)))) (not (bvsle (bvadd c_~counter~0 .cse161) (bvadd (_ bv2147483647 32) .cse162))) (= (bvadd c_~counter~0 .cse161 (bvneg .cse162)) (_ bv0 32))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse163 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse164 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse163 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse163) (bvadd (_ bv2147483647 32) .cse164))) (= (bvadd c_~counter~0 .cse163 (bvneg .cse164)) (_ bv0 32)))))) .cse4) .cse107)) .cse121 (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse165 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (let ((.cse166 (bvneg .cse165))) (or (not (bvsge .cse165 (_ bv0 32))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) .cse166))) (= (bvadd .cse166 c_~counter~0 .cse165) (_ bv0 32)))))) .cse4) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse168 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (let ((.cse167 (bvneg .cse168))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) .cse167))) (not (bvsle (bvadd c_~counter~0 .cse168) (bvadd (_ bv2147483647 32) .cse168))) (= (bvadd .cse167 c_~counter~0 .cse168) (_ bv0 32)))))) .cse4) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse169 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsge .cse169 (_ bv0 32))) (not (bvsle .cse169 (_ bv0 32))) (= (bvadd (bvneg .cse169) c_~counter~0 .cse169) (_ bv0 32))))) .cse4) (or (and (or .cse4 (and (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse170 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112))) (or (not (bvsge .cse170 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8))) (let ((.cse171 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 .cse171 (bvneg .cse170)) (_ bv0 32)) (not (bvsle .cse171 (_ bv0 32))))))))) (forall ((v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse172 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112))) (or (not (bvsge .cse172 (_ bv0 32))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8))) (let ((.cse173 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 .cse173 (bvneg .cse172)) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse173)))))))))))) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse175 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse174 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse174) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse174)))) (= (bvadd (bvneg .cse175) c_~counter~0 .cse174) (_ bv0 32))))) (not (bvsge .cse175 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse177 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse176 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse176) (_ bv0 32)) (not (bvsle .cse176 (_ bv0 32))) (= (bvadd (bvneg .cse177) c_~counter~0 .cse176) (_ bv0 32))))) (not (bvsge .cse177 (_ bv0 32))))))) .cse4) (or (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse179 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse178 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse178) (_ bv0 32)) (not (bvsle .cse178 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse178) (bvadd (_ bv2147483647 32) .cse179))) (= (bvadd (bvneg .cse179) c_~counter~0 .cse178) (_ bv0 32))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse181 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse180 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse180) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse180)))) (not (bvsle (bvadd c_~counter~0 .cse180) (bvadd (_ bv2147483647 32) .cse181))) (= (bvadd (bvneg .cse181) c_~counter~0 .cse180) (_ bv0 32)))))) .cse4) .cse17 (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse184 (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109))) (let ((.cse183 (concat .cse184 v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_107 (_ BitVec 8))) (let ((.cse182 (concat .cse184 v_arrayElimCell_107))) (or (not (bvsle .cse182 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse183) .cse182) (_ bv0 32))))) (not (bvsge .cse183 (_ bv0 32))))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse187 (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109))) (let ((.cse185 (concat .cse187 v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_107 (_ BitVec 8))) (let ((.cse186 (concat .cse187 v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg .cse185) .cse186) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse186))))))) (not (bvsge .cse185 (_ bv0 32)))))))) .cse4) (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse189 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse188 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 .cse188 (bvneg .cse189)) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse188) (bvadd (_ bv2147483647 32) .cse189))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse188))))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse191 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse190 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 .cse190 (bvneg .cse191)) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse190) (bvadd (_ bv2147483647 32) .cse191))) (not (bvsle .cse190 (_ bv0 32))))))) .cse4) (or .cse4 (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse193 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse192 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse192)))) (not (bvsle (bvadd c_~counter~0 .cse192) (bvadd (_ bv2147483647 32) .cse193))) (= (bvadd (bvneg .cse193) c_~counter~0 .cse192) (_ bv0 32))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse195 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse194 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse194 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse194) (bvadd (_ bv2147483647 32) .cse195))) (= (bvadd (bvneg .cse195) c_~counter~0 .cse194) (_ bv0 32))))))) (or (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse198 (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109))) (let ((.cse196 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) (.cse197 (concat .cse198 v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse196) c_~counter~0 .cse197) (_ bv0 32)) (not (bvsle .cse197 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse197) (bvadd (_ bv2147483647 32) .cse196))) (= (bvadd c_~counter~0 (bvneg (concat .cse198 v_arrayElimCell_112)) .cse197) (_ bv0 32)))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse201 (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109))) (let ((.cse199 (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) (.cse200 (concat .cse201 v_arrayElimCell_107))) (or (= (bvadd (bvneg .cse199) c_~counter~0 .cse200) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse200) (bvadd (_ bv2147483647 32) .cse199))) (= (bvadd c_~counter~0 (bvneg (concat .cse201 v_arrayElimCell_112)) .cse200) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse200))))))))) .cse24) (or (and (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse204 (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109))) (let ((.cse202 (concat .cse204 v_arrayElimCell_107)) (.cse203 (concat .cse204 v_arrayElimCell_112))) (or (not (bvsle .cse202 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse203) .cse202) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse202) (bvadd (_ bv2147483647 32) .cse203))))))) (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse207 (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109))) (let ((.cse205 (concat .cse207 v_arrayElimCell_112)) (.cse206 (concat .cse207 v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg .cse205) .cse206) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse206) (bvadd (_ bv2147483647 32) .cse205))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse206))))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse209 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse208 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 .cse208 (bvneg .cse209)) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse208) (bvadd (_ bv2147483647 32) .cse209))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse208))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse210 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse211 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112))) (or (not (bvsle .cse210 (_ bv0 32))) (= (bvadd c_~counter~0 .cse210 (bvneg .cse211)) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse210) (bvadd (_ bv2147483647 32) .cse211))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse213 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse212 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse212)))) (= (bvadd (bvneg .cse213) c_~counter~0 .cse212) (_ bv0 32))))) (not (bvsge .cse213 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_108 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse215 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_108) v_arrayElimCell_109) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse214 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse214 (_ bv0 32))) (= (bvadd (bvneg .cse215) c_~counter~0 .cse214) (_ bv0 32))))) (not (bvsge .cse215 (_ bv0 32))))))) .cse4) (or (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse217 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse216 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse216 (_ bv0 32))) (= (bvadd c_~counter~0 .cse216 (bvneg .cse217)) (_ bv0 32))))) (not (bvsge .cse217 (_ bv0 32)))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse218 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112))) (or (not (bvsge .cse218 (_ bv0 32))) (forall ((v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse219 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 .cse219 (bvneg .cse218)) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse219))))))))))) .cse4) .cse107 (or .cse4 (and (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse220 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112))) (or (not (bvsge .cse220 (_ bv0 32))) (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse221 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse221) (_ bv0 32)) (= (bvadd c_~counter~0 .cse221 (bvneg .cse220)) (_ bv0 32)) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse221)))))))))) (forall ((v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse223 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112))) (or (forall ((v_arrayElimCell_116 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_113 (_ BitVec 8)) (v_arrayElimCell_115 (_ BitVec 8)) (v_arrayElimCell_114 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8))) (let ((.cse222 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd c_~counter~0 (bvneg (concat (concat (concat v_arrayElimCell_113 v_arrayElimCell_114) v_arrayElimCell_115) v_arrayElimCell_116)) .cse222) (_ bv0 32)) (not (bvsle .cse222 (_ bv0 32))) (= (bvadd c_~counter~0 .cse222 (bvneg .cse223)) (_ bv0 32))))) (not (bvsge .cse223 (_ bv0 32)))))))) (or (and (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse225 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112)) (.cse224 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse224) (_ bv0 32)) (= (bvadd c_~counter~0 .cse224 (bvneg .cse225)) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse224) (bvadd (_ bv2147483647 32) .cse225))) (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) (bvneg .cse224))))))) (forall ((v_arrayElimCell_117 (_ BitVec 8)) (v_arrayElimCell_106 (_ BitVec 8)) (v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_119 (_ BitVec 8)) (v_arrayElimCell_118 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_112 (_ BitVec 8)) (v_arrayElimCell_120 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse226 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107)) (.cse227 (concat (concat (concat v_arrayElimCell_106 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_112))) (or (= (bvadd (bvneg (concat (concat (concat v_arrayElimCell_117 v_arrayElimCell_118) v_arrayElimCell_119) v_arrayElimCell_120)) c_~counter~0 .cse226) (_ bv0 32)) (not (bvsle .cse226 (_ bv0 32))) (= (bvadd c_~counter~0 .cse226 (bvneg .cse227)) (_ bv0 32)) (not (bvsle (bvadd c_~counter~0 .cse226) (bvadd (_ bv2147483647 32) .cse227))))))) .cse4)) .cse120) (or (forall ((v_arrayElimCell_105 (_ BitVec 8)) (v_arrayElimCell_107 (_ BitVec 8)) (v_arrayElimCell_111 (_ BitVec 8)) (v_arrayElimCell_109 (_ BitVec 8))) (let ((.cse228 (concat (concat (concat v_arrayElimCell_111 v_arrayElimCell_105) v_arrayElimCell_109) v_arrayElimCell_107))) (or (not (bvsle .cse228 (_ bv0 32))) (not (bvsle (bvadd c_~counter~0 .cse228) (bvadd (_ bv2147483647 32) .cse228))) (= (bvadd (bvneg .cse228) c_~counter~0 .cse228) (_ bv0 32))))) .cse4) .cse128 .cse137 .cse140)))) is different from true [2022-12-14 14:20:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-12-14 14:20:11,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:20:11,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993312980] [2022-12-14 14:20:11,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993312980] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:11,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1805675699] [2022-12-14 14:20:11,440 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:20:11,440 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:20:11,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:20:11,441 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:20:11,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2022-12-14 14:20:11,742 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:20:11,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:11,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 14:20:11,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:12,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:12,226 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 38 treesize of output 34 [2022-12-14 14:20:12,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:20:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:12,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:13,396 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:20:13,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 154 treesize of output 102 [2022-12-14 14:20:13,416 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:13,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 23 [2022-12-14 14:20:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:18,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1805675699] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:18,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623360693] [2022-12-14 14:20:18,724 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:20:18,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:18,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:20:18,726 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:20:18,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2022-12-14 14:20:18,893 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:20:18,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:18,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 14:20:18,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:18,907 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 39 treesize of output 37 [2022-12-14 14:20:19,034 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 38 treesize of output 34 [2022-12-14 14:20:19,100 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:19,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 46 [2022-12-14 14:20:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:19,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:19,419 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv3 32) c_~A~0.offset)) (.cse3 (bvadd (_ bv2 32) c_~A~0.offset)) (.cse4 (bvadd c_~A~0.offset (_ bv1 32)))) (and (forall ((v_ArrVal_1633 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1633) c_~A~0.base))) (concat (concat (concat (select .cse1 .cse2) (select .cse1 .cse3)) (select .cse1 .cse4)) (select .cse1 c_~A~0.offset))))) (or (not (bvsle c_~counter~0 (bvadd (_ bv2147483647 32) .cse0))) (= (bvadd c_~counter~0 (bvneg .cse0)) (_ bv0 32))))) (forall ((v_ArrVal_1633 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse5 (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1633) c_~A~0.base))) (concat (concat (concat (select .cse6 .cse2) (select .cse6 .cse3)) (select .cse6 .cse4)) (select .cse6 c_~A~0.offset))))) (or (not (bvsge .cse5 (_ bv0 32))) (= (bvadd c_~counter~0 (bvneg .cse5)) (_ bv0 32))))))) is different from false [2022-12-14 14:20:19,747 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:20:19,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 220 treesize of output 146 [2022-12-14 14:20:19,768 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:19,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 54 [2022-12-14 14:20:21,850 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:20:21,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 310 treesize of output 166 [2022-12-14 14:20:21,876 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:21,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 102 treesize of output 74 [2022-12-14 14:20:28,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-12-14 14:20:28,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623360693] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:28,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:20:28,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 25 [2022-12-14 14:20:28,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855721592] [2022-12-14 14:20:28,869 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:20:28,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 14:20:28,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:20:28,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 14:20:28,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=440, Unknown=9, NotChecked=138, Total=702 [2022-12-14 14:20:28,871 INFO L87 Difference]: Start difference. First operand 1062 states and 3230 transitions. Second operand has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 26 states have internal predecessors, (58), 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 14:20:38,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:38,203 INFO L93 Difference]: Finished difference Result 1197 states and 3512 transitions. [2022-12-14 14:20:38,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:20:38,205 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 26 states have internal predecessors, (58), 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 17 [2022-12-14 14:20:38,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:38,209 INFO L225 Difference]: With dead ends: 1197 [2022-12-14 14:20:38,209 INFO L226 Difference]: Without dead ends: 1167 [2022-12-14 14:20:38,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 67 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=163, Invalid=596, Unknown=9, NotChecked=162, Total=930 [2022-12-14 14:20:38,209 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 68 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 137 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:38,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 31 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 348 Invalid, 0 Unknown, 137 Unchecked, 2.1s Time] [2022-12-14 14:20:38,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2022-12-14 14:20:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1051. [2022-12-14 14:20:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1046 states have (on average 3.068833652007648) internal successors, (3210), 1050 states have internal predecessors, (3210), 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 14:20:38,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 3210 transitions. [2022-12-14 14:20:38,226 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 3210 transitions. Word has length 17 [2022-12-14 14:20:38,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:38,226 INFO L495 AbstractCegarLoop]: Abstraction has 1051 states and 3210 transitions. [2022-12-14 14:20:38,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 26 states have internal predecessors, (58), 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 14:20:38,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 3210 transitions. [2022-12-14 14:20:38,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:20:38,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:38,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:20:38,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2022-12-14 14:20:38,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2022-12-14 14:20:38,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (55)] Forceful destruction successful, exit code 0 [2022-12-14 14:20:38,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:20:38,829 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:20:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash 165853206, now seen corresponding path program 5 times [2022-12-14 14:20:38,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:20:38,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106599868] [2022-12-14 14:20:38,833 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 14:20:38,833 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 14:20:38,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:20:38,837 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:20:38,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (58)] Waiting until timeout for monitored process [2022-12-14 14:20:39,135 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:20:39,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:39,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 14:20:39,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:39,482 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:39,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 48 [2022-12-14 14:20:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:39,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:40,178 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:20:40,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 228 treesize of output 101 [2022-12-14 14:20:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:43,037 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:20:43,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106599868] [2022-12-14 14:20:43,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106599868] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:43,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1021973008] [2022-12-14 14:20:43,038 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 14:20:43,038 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:20:43,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:20:43,039 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:20:43,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2022-12-14 14:20:43,267 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:20:43,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:43,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 14:20:43,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:43,432 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:43,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:20:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:43,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:43,831 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:20:43,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 89 treesize of output 68 [2022-12-14 14:20:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:44,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1021973008] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:44,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534228237] [2022-12-14 14:20:44,479 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 14:20:44,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:44,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:20:44,480 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:20:44,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2022-12-14 14:20:44,672 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:20:44,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:44,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:20:44,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:44,980 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:44,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 40 [2022-12-14 14:20:45,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:45,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:45,374 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:20:45,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 183 treesize of output 91 [2022-12-14 14:20:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:47,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534228237] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:47,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:20:47,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 6, 4, 6, 4] total 12 [2022-12-14 14:20:47,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263810450] [2022-12-14 14:20:47,135 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:20:47,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 14:20:47,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:20:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 14:20:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:20:47,136 INFO L87 Difference]: Start difference. First operand 1051 states and 3210 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 14:20:48,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:48,179 INFO L93 Difference]: Finished difference Result 1112 states and 3344 transitions. [2022-12-14 14:20:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:20:48,181 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 17 [2022-12-14 14:20:48,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:48,183 INFO L225 Difference]: With dead ends: 1112 [2022-12-14 14:20:48,184 INFO L226 Difference]: Without dead ends: 1095 [2022-12-14 14:20:48,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 14:20:48,184 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 23 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:48,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 10 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:20:48,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2022-12-14 14:20:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1053. [2022-12-14 14:20:48,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1048 states have (on average 3.0658396946564888) internal successors, (3213), 1052 states have internal predecessors, (3213), 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 14:20:48,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 3213 transitions. [2022-12-14 14:20:48,203 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 3213 transitions. Word has length 17 [2022-12-14 14:20:48,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:48,203 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 3213 transitions. [2022-12-14 14:20:48,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 14:20:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 3213 transitions. [2022-12-14 14:20:48,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:20:48,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:48,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:20:48,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (58)] Ended with exit code 0 [2022-12-14 14:20:48,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2022-12-14 14:20:48,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2022-12-14 14:20:48,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:48,806 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:20:48,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1608144492, now seen corresponding path program 6 times [2022-12-14 14:20:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:20:48,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593273386] [2022-12-14 14:20:48,808 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-14 14:20:48,808 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 14:20:48,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:20:48,811 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:20:48,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (61)] Waiting until timeout for monitored process [2022-12-14 14:20:48,983 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-12-14 14:20:48,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:48,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 14:20:48,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:49,171 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:49,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 18 [2022-12-14 14:20:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:49,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:49,538 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:20:49,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 89 treesize of output 68 [2022-12-14 14:20:50,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:50,207 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:20:50,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593273386] [2022-12-14 14:20:50,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593273386] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:50,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [124065446] [2022-12-14 14:20:50,207 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-14 14:20:50,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:20:50,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:20:50,209 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:20:50,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2022-12-14 14:20:50,456 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-12-14 14:20:50,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:50,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 14:20:50,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:50,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:50,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:50,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:50,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-12-14 14:20:50,720 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 6 treesize of output 5 [2022-12-14 14:20:50,859 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 6 treesize of output 5 [2022-12-14 14:20:51,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:20:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:20:51,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:51,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:51,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [124065446] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:51,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105863379] [2022-12-14 14:20:51,768 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-14 14:20:51,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:51,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:20:51,770 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:20:51,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2022-12-14 14:20:51,941 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-12-14 14:20:51,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:20:51,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:20:51,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:52,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:52,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 46 [2022-12-14 14:20:52,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:52,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:53,034 INFO L321 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2022-12-14 14:20:53,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 226 treesize of output 99 [2022-12-14 14:20:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:54,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105863379] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:54,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:20:54,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 8, 4, 6, 4] total 22 [2022-12-14 14:20:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963059582] [2022-12-14 14:20:54,872 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:20:54,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 14:20:54,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:20:54,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 14:20:54,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-12-14 14:20:54,873 INFO L87 Difference]: Start difference. First operand 1053 states and 3213 transitions. Second operand has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 23 states have internal predecessors, (48), 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 14:20:56,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:56,753 INFO L93 Difference]: Finished difference Result 1126 states and 3373 transitions. [2022-12-14 14:20:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:20:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 23 states have internal predecessors, (48), 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 17 [2022-12-14 14:20:56,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:56,759 INFO L225 Difference]: With dead ends: 1126 [2022-12-14 14:20:56,759 INFO L226 Difference]: Without dead ends: 1105 [2022-12-14 14:20:56,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 67 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2022-12-14 14:20:56,760 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 55 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:56,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 17 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 14:20:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2022-12-14 14:20:56,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1051. [2022-12-14 14:20:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1046 states have (on average 3.0669216061185467) internal successors, (3208), 1050 states have internal predecessors, (3208), 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 14:20:56,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 3208 transitions. [2022-12-14 14:20:56,785 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 3208 transitions. Word has length 17 [2022-12-14 14:20:56,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:56,785 INFO L495 AbstractCegarLoop]: Abstraction has 1051 states and 3208 transitions. [2022-12-14 14:20:56,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 23 states have internal predecessors, (48), 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 14:20:56,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 3208 transitions. [2022-12-14 14:20:56,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:20:56,787 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:56,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:20:56,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2022-12-14 14:20:56,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2022-12-14 14:20:57,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (61)] Ended with exit code 0 [2022-12-14 14:20:57,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:20:57,389 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:20:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:57,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1171740130, now seen corresponding path program 7 times [2022-12-14 14:20:57,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:20:57,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685581762] [2022-12-14 14:20:57,392 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 14:20:57,392 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 14:20:57,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:20:57,394 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:20:57,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (64)] Waiting until timeout for monitored process [2022-12-14 14:20:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:57,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 14:20:57,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:57,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:20:57,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 40 [2022-12-14 14:20:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:20:57,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:58,404 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:20:58,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 170 treesize of output 83 [2022-12-14 14:21:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:21:01,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:21:01,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685581762] [2022-12-14 14:21:01,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685581762] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:01,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [909187262] [2022-12-14 14:21:01,478 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 14:21:01,478 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:21:01,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:21:01,480 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:21:01,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2022-12-14 14:21:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:01,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 14:21:01,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:02,124 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:21:02,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:21:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:21:02,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:21:02,427 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:21:02,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 14:21:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:21:03,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [909187262] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:03,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536588679] [2022-12-14 14:21:03,023 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 14:21:03,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:03,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:03,024 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:21:03,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2022-12-14 14:21:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:03,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 14:21:03,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:03,399 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:21:03,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 18 [2022-12-14 14:21:03,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:21:03,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:21:03,695 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-12-14 14:21:03,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 14:21:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:21:04,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536588679] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:04,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:21:04,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6, 4, 6, 4] total 12 [2022-12-14 14:21:04,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589301806] [2022-12-14 14:21:04,287 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:21:04,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 14:21:04,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:21:04,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 14:21:04,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:21:04,288 INFO L87 Difference]: Start difference. First operand 1051 states and 3208 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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 14:21:05,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:05,409 INFO L93 Difference]: Finished difference Result 1100 states and 3312 transitions. [2022-12-14 14:21:05,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:21:05,410 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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 17 [2022-12-14 14:21:05,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:05,413 INFO L225 Difference]: With dead ends: 1100 [2022-12-14 14:21:05,413 INFO L226 Difference]: Without dead ends: 1072 [2022-12-14 14:21:05,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 76 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-14 14:21:05,413 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:05,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 18 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:21:05,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-12-14 14:21:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1040. [2022-12-14 14:21:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1035 states have (on average 3.082125603864734) internal successors, (3190), 1039 states have internal predecessors, (3190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:21:05,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 3190 transitions. [2022-12-14 14:21:05,431 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 3190 transitions. Word has length 17 [2022-12-14 14:21:05,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:05,431 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 3190 transitions. [2022-12-14 14:21:05,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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 14:21:05,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 3190 transitions. [2022-12-14 14:21:05,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 14:21:05,432 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:05,432 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 1, 1, 1, 1, 1] [2022-12-14 14:21:05,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2022-12-14 14:21:05,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (64)] Ended with exit code 0 [2022-12-14 14:21:05,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2022-12-14 14:21:06,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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=3,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:06,034 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:21:06,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2010392616, now seen corresponding path program 4 times [2022-12-14 14:21:06,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:21:06,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59338075] [2022-12-14 14:21:06,037 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:21:06,037 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 14:21:06,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:21:06,040 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:21:06,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (67)] Waiting until timeout for monitored process [2022-12-14 14:21:06,239 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:21:06,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:21:06,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 14:21:06,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:06,379 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-12-14 14:21:06,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-12-14 14:21:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 43 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:21:08,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:21:14,761 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:21:14,761 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:21:14,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59338075] [2022-12-14 14:21:14,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59338075] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:14,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [150942243] [2022-12-14 14:21:14,761 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:21:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:21:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:21:14,762 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:21:14,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2022-12-14 14:21:15,117 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:21:15,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:21:15,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 14:21:15,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:18,631 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:21:18,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:21:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:21:23,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [150942243] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:23,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085207015] [2022-12-14 14:21:23,538 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:21:23,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:23,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:23,539 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:21:23,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2022-12-14 14:21:23,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:21:23,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:21:23,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 14:21:23,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:21:28,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:21:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:21:31,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085207015] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:31,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:21:31,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 14, 14, 14, 14] total 78 [2022-12-14 14:21:31,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075270259] [2022-12-14 14:21:31,160 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:21:31,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-12-14 14:21:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:21:31,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-12-14 14:21:31,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=580, Invalid=5582, Unknown=0, NotChecked=0, Total=6162 [2022-12-14 14:21:31,162 INFO L87 Difference]: Start difference. First operand 1040 states and 3190 transitions. Second operand has 79 states, 79 states have (on average 1.139240506329114) internal successors, (90), 78 states have internal predecessors, (90), 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 14:23:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:32,454 INFO L93 Difference]: Finished difference Result 2403 states and 6532 transitions. [2022-12-14 14:23:32,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-12-14 14:23:32,458 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 1.139240506329114) internal successors, (90), 78 states have internal predecessors, (90), 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 20 [2022-12-14 14:23:32,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:32,463 INFO L225 Difference]: With dead ends: 2403 [2022-12-14 14:23:32,463 INFO L226 Difference]: Without dead ends: 2403 [2022-12-14 14:23:32,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5401 ImplicationChecksByTransitivity, 73.4s TimeCoverageRelationStatistics Valid=2763, Invalid=18407, Unknown=0, NotChecked=0, Total=21170 [2022-12-14 14:23:32,464 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 2525 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 11392 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 11456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 11392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:32,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2525 Valid, 1410 Invalid, 11456 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 11392 Invalid, 0 Unknown, 0 Unchecked, 69.4s Time] [2022-12-14 14:23:32,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2022-12-14 14:23:32,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 1023. [2022-12-14 14:23:32,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 1018 states have (on average 3.024557956777996) internal successors, (3079), 1022 states have internal predecessors, (3079), 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 14:23:32,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 3079 transitions. [2022-12-14 14:23:32,488 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 3079 transitions. Word has length 20 [2022-12-14 14:23:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:32,488 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 3079 transitions. [2022-12-14 14:23:32,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 1.139240506329114) internal successors, (90), 78 states have internal predecessors, (90), 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 14:23:32,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 3079 transitions. [2022-12-14 14:23:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 14:23:32,489 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:32,489 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:32,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2022-12-14 14:23:32,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2022-12-14 14:23:32,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (67)] Ended with exit code 0 [2022-12-14 14:23:33,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:23:33,092 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-12-14 14:23:33,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1527050868, now seen corresponding path program 8 times [2022-12-14 14:23:33,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:23:33,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158068522] [2022-12-14 14:23:33,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:23:33,094 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 14:23:33,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:23:33,095 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 14:23:33,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438d4567-6f06-4793-8b14-f95ab3743ebb/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 (70)] Waiting until timeout for monitored process [2022-12-14 14:23:33,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:23:33,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:23:33,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-14 14:23:33,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:23:34,846 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:23:34,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 714 treesize of output 214 [2022-12-14 14:23:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 14:23:36,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:23:39,792 INFO L321 Elim1Store]: treesize reduction 672, result has 23.7 percent of original size [2022-12-14 14:23:39,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 817 treesize of output 387