./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur --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 b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 --- 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-38b53e6 [2022-11-26 00:44:07,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:44:07,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:44:07,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:44:07,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:44:07,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:44:07,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:44:07,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:44:07,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:44:07,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:44:07,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:44:07,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:44:07,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:44:07,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:44:07,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:44:07,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:44:07,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:44:07,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:44:07,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:44:07,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:44:07,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:44:07,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:44:07,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:44:07,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:44:07,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:44:07,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:44:07,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:44:07,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:44:07,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:44:07,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:44:07,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:44:07,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:44:07,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:44:07,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:44:07,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:44:07,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:44:07,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:44:07,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:44:07,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:44:07,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:44:07,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:44:07,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:44:07,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:44:07,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:44:07,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:44:07,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:44:07,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:44:07,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:44:07,337 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:44:07,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:44:07,337 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:44:07,337 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:44:07,338 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:44:07,338 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:44:07,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:44:07,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:44:07,338 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:44:07,339 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:44:07,339 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:44:07,339 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:44:07,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:44:07,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:44:07,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:44:07,340 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:44:07,341 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:44:07,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:44:07,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:44:07,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:44:07,341 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:44:07,342 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:44:07,342 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:44:07,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:44:07,342 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:44:07,342 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:44:07,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:44:07,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:44:07,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:44:07,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:44:07,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:44:07,344 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:44:07,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:44:07,344 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:44:07,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:44:07,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:44:07,345 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_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 [2022-11-26 00:44:07,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:44:07,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:44:07,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:44:07,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:44:07,704 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:44:07,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2022-11-26 00:44:10,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:44:11,204 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:44:11,205 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2022-11-26 00:44:11,225 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data/4c8c2085d/86925a972d6d42e0b4ae99ca5e0e6a03/FLAG82fa58a4c [2022-11-26 00:44:11,242 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data/4c8c2085d/86925a972d6d42e0b4ae99ca5e0e6a03 [2022-11-26 00:44:11,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:44:11,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:44:11,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:11,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:44:11,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:44:11,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:11" (1/1) ... [2022-11-26 00:44:11,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17682e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:11, skipping insertion in model container [2022-11-26 00:44:11,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:11" (1/1) ... [2022-11-26 00:44:11,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:44:11,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:44:11,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:11,584 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-26 00:44:11,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@214fd8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:11, skipping insertion in model container [2022-11-26 00:44:11,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:11,585 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-26 00:44:11,588 INFO L158 Benchmark]: Toolchain (without parser) took 339.62ms. Allocated memory is still 186.6MB. Free memory was 140.4MB in the beginning and 129.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:44:11,589 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:44:11,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.10ms. Allocated memory is still 186.6MB. Free memory was 140.4MB in the beginning and 129.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:44:11,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.10ms. Allocated memory is still 186.6MB. Free memory was 140.4MB in the beginning and 129.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 562]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur --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 b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 --- 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-38b53e6 [2022-11-26 00:44:13,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:44:13,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:44:13,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:44:13,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:44:13,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:44:13,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:44:13,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:44:13,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:44:13,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:44:13,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:44:13,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:44:13,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:44:13,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:44:13,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:44:13,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:44:13,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:44:13,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:44:13,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:44:13,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:44:13,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:44:13,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:44:13,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:44:13,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:44:13,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:44:13,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:44:13,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:44:13,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:44:13,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:44:13,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:44:13,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:44:13,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:44:13,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:44:13,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:44:13,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:44:13,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:44:13,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:44:13,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:44:13,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:44:13,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:44:13,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:44:13,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-26 00:44:13,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:44:13,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:44:13,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:44:13,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:44:13,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:44:13,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:44:13,972 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:44:13,972 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:44:13,972 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:44:13,973 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:44:13,974 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:44:13,974 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:44:13,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:44:13,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:44:13,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:44:13,976 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:44:13,976 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:44:13,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:44:13,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:44:13,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:44:13,977 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:44:13,977 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:44:13,977 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:44:13,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:44:13,978 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:44:13,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:44:13,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:44:13,979 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:44:13,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:44:13,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:44:13,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:44:13,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:44:13,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:44:13,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:44:13,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:44:13,981 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:44:13,981 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:44:13,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:44:13,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:44:13,982 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_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 [2022-11-26 00:44:14,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:44:14,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:44:14,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:44:14,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:44:14,396 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:44:14,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2022-11-26 00:44:17,435 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:44:17,757 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:44:17,758 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2022-11-26 00:44:17,773 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data/56205f41e/e4dda96b46bb4566b6a95dbbaa040959/FLAGf003333b9 [2022-11-26 00:44:17,797 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/data/56205f41e/e4dda96b46bb4566b6a95dbbaa040959 [2022-11-26 00:44:17,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:44:17,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:44:17,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:17,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:44:17,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:44:17,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:17" (1/1) ... [2022-11-26 00:44:17,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f5ca61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:17, skipping insertion in model container [2022-11-26 00:44:17,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:17" (1/1) ... [2022-11-26 00:44:17,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:44:17,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:44:18,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:18,156 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-26 00:44:18,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:44:18,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:18,216 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:44:18,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:18,321 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:44:18,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18 WrapperNode [2022-11-26 00:44:18,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:18,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:44:18,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:44:18,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:44:18,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,395 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-11-26 00:44:18,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:44:18,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:44:18,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:44:18,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:44:18,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,437 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:44:18,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:44:18,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:44:18,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:44:18,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:44:18,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:44:18,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:44:18,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:44:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2022-11-26 00:44:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2022-11-26 00:44:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:44:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:44:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:44:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:44:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:44:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:44:18,733 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:44:18,735 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:44:19,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:44:19,039 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:44:19,039 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:44:19,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:19 BoogieIcfgContainer [2022-11-26 00:44:19,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:44:19,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:44:19,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:44:19,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:44:19,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:44:17" (1/3) ... [2022-11-26 00:44:19,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a3b9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:44:19, skipping insertion in model container [2022-11-26 00:44:19,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (2/3) ... [2022-11-26 00:44:19,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a3b9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:44:19, skipping insertion in model container [2022-11-26 00:44:19,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:19" (3/3) ... [2022-11-26 00:44:19,059 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-1.i [2022-11-26 00:44:19,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:44:19,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-26 00:44:19,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:44:19,142 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;@202adb3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:44:19,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-26 00:44:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 38 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:44:19,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:19,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:19,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-26 00:44:19,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:19,163 INFO L85 PathProgramCache]: Analyzing trace with hash -900798970, now seen corresponding path program 1 times [2022-11-26 00:44:19,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:19,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216362949] [2022-11-26 00:44:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:19,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:19,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:19,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:44:19,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:44:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:19,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:44:19,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:19,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-26 00:44:19,571 WARN L859 $PredicateComparison]: unable to prove that (exists ((|alloc_node_~temp~0#1.base| (_ BitVec 32))) (= (store |c_old(#valid)| |alloc_node_~temp~0#1.base| (_ bv1 1)) |c_#valid|)) is different from true [2022-11-26 00:44:19,632 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:44:19,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-26 00:44:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-26 00:44:19,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:19,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:19,918 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:19,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216362949] [2022-11-26 00:44:19,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216362949] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:44:19,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1349003760] [2022-11-26 00:44:19,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:19,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:44:19,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:44:19,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:44:19,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2022-11-26 00:44:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:20,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:44:20,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:20,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-26 00:44:20,125 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:44:20,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-26 00:44:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-26 00:44:20,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:20,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1349003760] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:44:20,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225719293] [2022-11-26 00:44:20,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:20,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:44:20,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:44:20,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:44:20,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:44:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:20,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:44:20,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:20,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-26 00:44:20,530 WARN L859 $PredicateComparison]: unable to prove that (exists ((|alloc_node_~temp~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |alloc_node_~temp~0#1.base|)) (exists ((v_ArrVal_22 (_ BitVec 1))) (= (store |c_old(#valid)| |alloc_node_~temp~0#1.base| v_ArrVal_22) |c_#valid|)))) is different from true [2022-11-26 00:44:20,596 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-26 00:44:20,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-26 00:44:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-26 00:44:20,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:20,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225719293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:44:20,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:44:20,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7, 6, 7, 6] total 9 [2022-11-26 00:44:20,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293434095] [2022-11-26 00:44:20,833 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:44:20,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:44:20,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:44:20,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=44, Unknown=2, NotChecked=26, Total=90 [2022-11-26 00:44:20,870 INFO L87 Difference]: Start difference. First operand has 42 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 38 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-26 00:44:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:25,314 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-11-26 00:44:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:44:25,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 16 [2022-11-26 00:44:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:25,324 INFO L225 Difference]: With dead ends: 37 [2022-11-26 00:44:25,324 INFO L226 Difference]: Without dead ends: 34 [2022-11-26 00:44:25,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 72 SyntacticMatches, 10 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=34, Invalid=82, Unknown=2, NotChecked=38, Total=156 [2022-11-26 00:44:25,329 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:25,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 77 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 123 Invalid, 0 Unknown, 68 Unchecked, 0.2s Time] [2022-11-26 00:44:25,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-26 00:44:25,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-26 00:44:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 30 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2022-11-26 00:44:25,367 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 16 [2022-11-26 00:44:25,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:25,368 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2022-11-26 00:44:25,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-26 00:44:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2022-11-26 00:44:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:44:25,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:25,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:25,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:25,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:25,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:25,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:44:25,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-26 00:44:25,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:25,977 INFO L85 PathProgramCache]: Analyzing trace with hash -900798969, now seen corresponding path program 1 times [2022-11-26 00:44:25,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:25,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134324454] [2022-11-26 00:44:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:25,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:25,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:25,982 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:44:25,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-26 00:44:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:26,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-26 00:44:26,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:26,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:44:26,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-26 00:44:26,220 WARN L859 $PredicateComparison]: unable to prove that (exists ((|alloc_node_~temp~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |alloc_node_~temp~0#1.base|)) (exists ((v_ArrVal_33 (_ BitVec 32))) (= (store |c_old(#length)| |alloc_node_~temp~0#1.base| v_ArrVal_33) |c_#length|)))) is different from true [2022-11-26 00:44:26,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:44:26,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-26 00:44:26,279 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-26 00:44:26,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-26 00:44:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-26 00:44:26,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:28,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:28,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134324454] [2022-11-26 00:44:28,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134324454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:44:28,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1251806479] [2022-11-26 00:44:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:28,636 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:44:28,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:44:28,637 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:44:28,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2022-11-26 00:44:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:28,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-26 00:44:28,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:28,743 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 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-26 00:44:28,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:44:28,867 WARN L859 $PredicateComparison]: unable to prove that (exists ((|alloc_node_~temp~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |alloc_node_~temp~0#1.base|)) (exists ((v_ArrVal_43 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |alloc_node_~temp~0#1.base| v_ArrVal_43))))) is different from true [2022-11-26 00:44:28,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:44:28,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-26 00:44:28,940 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-26 00:44:28,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-26 00:44:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-26 00:44:28,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:29,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1251806479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:44:29,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932169877] [2022-11-26 00:44:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:29,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:44:29,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:44:29,159 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:44:29,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:44:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:29,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-26 00:44:29,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:29,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-26 00:44:29,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:44:29,347 WARN L859 $PredicateComparison]: unable to prove that (exists ((|alloc_node_~temp~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |alloc_node_~temp~0#1.base|)) (exists ((v_ArrVal_53 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |alloc_node_~temp~0#1.base| v_ArrVal_53))))) is different from true [2022-11-26 00:44:29,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:44:29,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-26 00:44:29,403 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-26 00:44:29,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-26 00:44:29,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-26 00:44:29,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:29,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932169877] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:44:29,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:44:29,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2022-11-26 00:44:29,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740232729] [2022-11-26 00:44:29,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:44:29,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:44:29,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:29,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:44:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=71, Unknown=4, NotChecked=54, Total=156 [2022-11-26 00:44:29,627 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-26 00:44:30,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:30,047 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-11-26 00:44:30,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:44:30,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 16 [2022-11-26 00:44:30,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:30,052 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:44:30,052 INFO L226 Difference]: Without dead ends: 29 [2022-11-26 00:44:30,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=35, Invalid=105, Unknown=4, NotChecked=66, Total=210 [2022-11-26 00:44:30,054 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:30,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 56 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 75 Unchecked, 0.2s Time] [2022-11-26 00:44:30,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-26 00:44:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-26 00:44:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 25 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-11-26 00:44:30,059 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 16 [2022-11-26 00:44:30,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:30,059 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-11-26 00:44:30,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-26 00:44:30,060 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-11-26 00:44:30,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:44:30,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:30,061 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:30,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:30,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2022-11-26 00:44:30,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:30,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:44:30,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-26 00:44:30,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:30,673 INFO L85 PathProgramCache]: Analyzing trace with hash -866093651, now seen corresponding path program 1 times [2022-11-26 00:44:30,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:30,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971211313] [2022-11-26 00:44:30,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:30,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:30,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:30,681 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:44:30,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-26 00:44:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:30,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:44:30,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:31,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:31,318 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:44:31,318 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:31,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971211313] [2022-11-26 00:44:31,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971211313] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:44:31,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1524487763] [2022-11-26 00:44:31,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:31,319 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:44:31,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:44:31,320 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:44:31,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-26 00:44:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:31,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:44:31,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:31,505 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:31,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:44:31,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1524487763] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:44:31,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061476727] [2022-11-26 00:44:31,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:31,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:44:31,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:44:31,608 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:44:31,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:44:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:31,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:44:31,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:31,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:44:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:44:31,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061476727] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:44:31,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:44:31,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6, 5, 6, 5] total 11 [2022-11-26 00:44:31,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552660221] [2022-11-26 00:44:31,895 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:44:31,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:44:31,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:31,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:44:31,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:44:31,896 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-26 00:44:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:32,188 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-11-26 00:44:32,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:44:32,190 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 24 [2022-11-26 00:44:32,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:32,190 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:44:32,191 INFO L226 Difference]: Without dead ends: 29 [2022-11-26 00:44:32,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:44:32,192 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:32,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 66 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:44:32,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-26 00:44:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-11-26 00:44:32,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 24 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2022-11-26 00:44:32,196 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 24 [2022-11-26 00:44:32,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:32,197 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2022-11-26 00:44:32,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-26 00:44:32,197 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-11-26 00:44:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 00:44:32,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:32,198 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:32,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:32,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:32,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:32,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:32,801 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-26 00:44:32,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:32,802 INFO L85 PathProgramCache]: Analyzing trace with hash 907658607, now seen corresponding path program 1 times [2022-11-26 00:44:32,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:32,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713551660] [2022-11-26 00:44:32,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:32,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:32,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:32,806 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:44:32,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-26 00:44:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:32,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:44:32,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:32,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:44:32,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-26 00:44:32,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:44:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:44:33,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:44:33,023 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:33,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713551660] [2022-11-26 00:44:33,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713551660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:44:33,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:44:33,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:44:33,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193358064] [2022-11-26 00:44:33,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:44:33,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:44:33,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:33,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:44:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:44:33,025 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:44:33,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:33,216 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-11-26 00:44:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:44:33,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-26 00:44:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:33,220 INFO L225 Difference]: With dead ends: 27 [2022-11-26 00:44:33,220 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:44:33,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:44:33,221 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:33,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 101 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:44:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:44:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-26 00:44:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 23 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-26 00:44:33,225 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2022-11-26 00:44:33,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:33,226 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-26 00:44:33,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:44:33,226 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-26 00:44:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:44:33,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:33,227 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:33,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:33,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:33,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-26 00:44:33,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1927354195, now seen corresponding path program 1 times [2022-11-26 00:44:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:33,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012516576] [2022-11-26 00:44:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:33,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:33,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:33,441 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:44:33,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-26 00:44:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:33,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-26 00:44:33,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:33,850 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 11 treesize of output 7 [2022-11-26 00:44:33,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-26 00:44:34,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:44:34,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:34,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:44:34,246 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:34,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012516576] [2022-11-26 00:44:34,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012516576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:44:34,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:44:34,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:44:34,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459662533] [2022-11-26 00:44:34,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:44:34,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:44:34,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:34,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:44:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:44:34,248 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:34,946 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-11-26 00:44:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:44:34,947 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-26 00:44:34,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:34,947 INFO L225 Difference]: With dead ends: 27 [2022-11-26 00:44:34,948 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:44:34,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:44:34,949 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:34,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 44 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:44:34,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:44:34,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-11-26 00:44:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 22 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2022-11-26 00:44:34,953 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 27 [2022-11-26 00:44:34,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:34,953 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2022-11-26 00:44:34,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2022-11-26 00:44:34,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-26 00:44:34,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:34,954 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:34,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:35,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:35,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-26 00:44:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 381562161, now seen corresponding path program 1 times [2022-11-26 00:44:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:35,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614559339] [2022-11-26 00:44:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:35,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:35,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:35,167 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:44:35,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-26 00:44:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:35,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-26 00:44:35,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:35,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-26 00:44:35,424 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-26 00:44:35,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-26 00:44:35,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:44:35,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2022-11-26 00:44:35,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-26 00:44:35,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-11-26 00:44:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:35,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:44:35,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:35,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614559339] [2022-11-26 00:44:35,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614559339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:44:35,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:44:35,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:44:35,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344575852] [2022-11-26 00:44:35,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:44:35,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-26 00:44:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:35,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-26 00:44:35,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:44:35,801 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:36,288 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-26 00:44:36,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:44:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-11-26 00:44:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:36,290 INFO L225 Difference]: With dead ends: 25 [2022-11-26 00:44:36,290 INFO L226 Difference]: Without dead ends: 25 [2022-11-26 00:44:36,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:44:36,291 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:36,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 52 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:44:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-26 00:44:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-26 00:44:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-11-26 00:44:36,294 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 28 [2022-11-26 00:44:36,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:36,295 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-11-26 00:44:36,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-11-26 00:44:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:44:36,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:36,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:36,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:36,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:36,508 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2022-11-26 00:44:36,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:36,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1056474832, now seen corresponding path program 1 times [2022-11-26 00:44:36,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:36,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096340420] [2022-11-26 00:44:36,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:36,509 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 [2022-11-26 00:44:36,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:36,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:44:36,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-26 00:44:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:36,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-26 00:44:36,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:36,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:44:37,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2022-11-26 00:44:37,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-26 00:44:37,499 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~t~0#1.base| (_ BitVec 32))) (and (not (= |ULTIMATE.start_main_~t~0#1.base| (_ bv0 32))) (exists ((v_ArrVal_162 (_ BitVec 1)) (v_ArrVal_161 (_ BitVec 1)) (|ULTIMATE.start_main_~s~0#1.base| (_ BitVec 32))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~s~0#1.base| v_ArrVal_161))) (let ((.cse0 (store (store .cse1 |ULTIMATE.start_main_~t~0#1.base| v_ArrVal_162) |ULTIMATE.start_main_~s~0#1.base| (_ bv0 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~s~0#1.base|)) (= (bvadd (select .cse0 |ULTIMATE.start_main_~t~0#1.base|) (_ bv1 1)) (_ bv0 1)) (= |c_#valid| (store .cse0 |ULTIMATE.start_main_~t~0#1.base| (_ bv0 1))) (= (_ bv0 1) (select .cse1 |ULTIMATE.start_main_~t~0#1.base|)))))))) is different from true [2022-11-26 00:44:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:44:37,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:44:37,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:37,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096340420] [2022-11-26 00:44:37,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096340420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:44:37,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:44:37,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-26 00:44:37,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304105282] [2022-11-26 00:44:37,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:44:37,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:44:37,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:37,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:44:37,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=209, Unknown=1, NotChecked=28, Total=272 [2022-11-26 00:44:37,503 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:40,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:40,739 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-11-26 00:44:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:44:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-11-26 00:44:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:40,740 INFO L225 Difference]: With dead ends: 24 [2022-11-26 00:44:40,740 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:44:40,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=398, Unknown=1, NotChecked=40, Total=506 [2022-11-26 00:44:40,741 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:40,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 53 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 258 Invalid, 2 Unknown, 23 Unchecked, 2.7s Time] [2022-11-26 00:44:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:44:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:44:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:44:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:44:40,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-26 00:44:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:40,743 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:44:40,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:44:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:44:40,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:44:40,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2022-11-26 00:44:40,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2022-11-26 00:44:40,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2022-11-26 00:44:40,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2022-11-26 00:44:40,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2022-11-26 00:44:40,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2022-11-26 00:44:40,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2022-11-26 00:44:40,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2022-11-26 00:44:40,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE (6 of 15 remaining) [2022-11-26 00:44:40,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE (5 of 15 remaining) [2022-11-26 00:44:40,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE (4 of 15 remaining) [2022-11-26 00:44:40,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE (3 of 15 remaining) [2022-11-26 00:44:40,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE (2 of 15 remaining) [2022-11-26 00:44:40,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE (1 of 15 remaining) [2022-11-26 00:44:40,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2022-11-26 00:44:40,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-11-26 00:44:40,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:44:40,969 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:40,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:44:40,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:44:40 BoogieIcfgContainer [2022-11-26 00:44:40,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:44:40,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:44:40,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:44:40,974 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:44:40,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:19" (3/4) ... [2022-11-26 00:44:40,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:44:40,983 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_node [2022-11-26 00:44:40,989 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-26 00:44:40,990 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:44:40,990 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:44:40,990 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:44:41,021 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:44:41,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:44:41,022 INFO L158 Benchmark]: Toolchain (without parser) took 23220.51ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 63.6MB in the beginning and 39.8MB in the end (delta: 23.9MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2022-11-26 00:44:41,022 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:44:41,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.89ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 64.8MB in the end (delta: -1.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-11-26 00:44:41,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.35ms. Allocated memory is still 86.0MB. Free memory was 64.8MB in the beginning and 63.0MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:44:41,023 INFO L158 Benchmark]: Boogie Preprocessor took 53.56ms. Allocated memory is still 86.0MB. Free memory was 63.0MB in the beginning and 61.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:44:41,024 INFO L158 Benchmark]: RCFGBuilder took 590.20ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:44:41,024 INFO L158 Benchmark]: TraceAbstraction took 21930.35ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.6MB in the beginning and 42.9MB in the end (delta: 4.7MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2022-11-26 00:44:41,024 INFO L158 Benchmark]: Witness Printer took 47.90ms. Allocated memory is still 104.9MB. Free memory was 42.9MB in the beginning and 39.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:44:41,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.89ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 64.8MB in the end (delta: -1.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.35ms. Allocated memory is still 86.0MB. Free memory was 64.8MB in the beginning and 63.0MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.56ms. Allocated memory is still 86.0MB. Free memory was 63.0MB in the beginning and 61.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 590.20ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21930.35ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.6MB in the beginning and 42.9MB in the end (delta: 4.7MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Witness Printer took 47.90ms. Allocated memory is still 104.9MB. Free memory was 42.9MB in the beginning and 39.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 21.9s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 449 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 166 IncrementalHoareTripleChecker+Unchecked, 351 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 977 IncrementalHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 98 mSDtfsCounter, 977 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 297 SyntacticMatches, 15 SemanticMatches, 97 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 379 ConstructedInterpolants, 91 QuantifiedInterpolants, 3065 SizeOfPredicates, 46 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 183 ConjunctsInUnsatCore, 19 InterpolantComputations, 4 PerfectInterpolantSequences, 35/95 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:44:41,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf14d7b-5f05-4367-83b6-99489933bf2b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE