./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b --- 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-e04fb08 [2022-11-16 11:26:00,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:26:00,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:26:00,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:26:00,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:26:00,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:26:00,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:26:00,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:26:00,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:26:00,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:26:00,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:26:00,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:26:00,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:26:00,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:26:00,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:26:00,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:26:00,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:26:00,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:26:00,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:26:00,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:26:00,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:26:00,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:26:00,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:26:00,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:26:00,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:26:00,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:26:00,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:26:00,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:26:00,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:26:00,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:26:00,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:26:00,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:26:00,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:26:00,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:26:00,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:26:00,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:26:00,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:26:00,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:26:00,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:26:00,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:26:00,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:26:00,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:26:00,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:26:00,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:26:00,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:26:00,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:26:00,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:26:00,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:26:00,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:26:00,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:26:00,651 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:26:00,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:26:00,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:26:00,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:26:00,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:26:00,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:26:00,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:26:00,655 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:26:00,655 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:26:00,655 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:26:00,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:26:00,656 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:26:00,656 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:26:00,657 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:26:00,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:26:00,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:26:00,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:26:00,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:00,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:26:00,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:26:00,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:26:00,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:26:00,662 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_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b [2022-11-16 11:26:01,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:26:01,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:26:01,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:26:01,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:26:01,080 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:26:01,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2022-11-16 11:26:01,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/d34f96dd5/1e9f332e955b40759d13e5b211a98464/FLAG4c077d46b [2022-11-16 11:26:01,744 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:26:01,745 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2022-11-16 11:26:01,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/d34f96dd5/1e9f332e955b40759d13e5b211a98464/FLAG4c077d46b [2022-11-16 11:26:02,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/d34f96dd5/1e9f332e955b40759d13e5b211a98464 [2022-11-16 11:26:02,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:26:02,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:26:02,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:02,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:26:02,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:26:02,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:02" (1/1) ... [2022-11-16 11:26:02,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aecdd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:02, skipping insertion in model container [2022-11-16 11:26:02,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:02" (1/1) ... [2022-11-16 11:26:02,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:26:02,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:26:02,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:02,502 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) [2022-11-16 11:26:02,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1feda622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:02, skipping insertion in model container [2022-11-16 11:26:02,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:02,504 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-16 11:26:02,506 INFO L158 Benchmark]: Toolchain (without parser) took 470.77ms. Allocated memory is still 98.6MB. Free memory was 62.1MB in the beginning and 73.4MB in the end (delta: -11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:26:02,506 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:26:02,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.99ms. Allocated memory is still 98.6MB. Free memory was 61.9MB in the beginning and 73.4MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:26:02,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.99ms. Allocated memory is still 98.6MB. Free memory was 61.9MB in the beginning and 73.4MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 643]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b --- 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-e04fb08 [2022-11-16 11:26:04,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:26:04,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:26:04,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:26:04,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:26:04,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:26:04,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:26:04,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:26:04,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:26:04,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:26:04,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:26:04,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:26:04,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:26:04,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:26:04,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:26:04,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:26:04,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:26:04,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:26:04,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:26:04,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:26:04,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:26:04,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:26:04,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:26:04,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:26:04,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:26:04,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:26:04,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:26:04,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:26:04,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:26:04,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:26:04,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:26:04,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:26:04,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:26:04,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:26:04,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:26:04,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:26:04,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:26:04,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:26:04,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:26:04,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:26:04,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:26:04,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 11:26:04,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:26:04,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:26:04,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:26:04,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:26:04,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:26:04,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:26:04,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:26:04,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:26:04,934 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:26:04,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:26:04,934 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:26:04,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:26:04,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:26:04,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:26:04,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:26:04,936 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:26:04,936 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:26:04,936 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:26:04,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:26:04,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:26:04,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:26:04,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:26:04,937 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:26:04,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:26:04,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:26:04,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:26:04,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:26:04,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:04,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:26:04,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:26:04,940 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:26:04,940 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:26:04,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:26:04,940 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_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b [2022-11-16 11:26:05,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:26:05,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:26:05,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:26:05,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:26:05,331 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:26:05,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2022-11-16 11:26:05,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/2b11b3804/ace7142eabd54de78a41975adab9187b/FLAG50852fde3 [2022-11-16 11:26:06,144 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:26:06,144 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2022-11-16 11:26:06,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/2b11b3804/ace7142eabd54de78a41975adab9187b/FLAG50852fde3 [2022-11-16 11:26:06,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/data/2b11b3804/ace7142eabd54de78a41975adab9187b [2022-11-16 11:26:06,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:26:06,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:26:06,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:06,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:26:06,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:26:06,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d169064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06, skipping insertion in model container [2022-11-16 11:26:06,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:26:06,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:26:06,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:06,839 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 11:26:06,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:26:06,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:06,911 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:26:06,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:07,003 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:26:07,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07 WrapperNode [2022-11-16 11:26:07,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:07,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:07,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:26:07,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:26:07,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,083 INFO L138 Inliner]: procedures = 182, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-11-16 11:26:07,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:07,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:26:07,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:26:07,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:26:07,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,140 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:26:07,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:26:07,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:26:07,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:26:07,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (1/1) ... [2022-11-16 11:26:07,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:07,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:07,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:26:07,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:26:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:26:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:26:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:26:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:26:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 11:26:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:26:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:26:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:26:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:26:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:26:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:26:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:26:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-16 11:26:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:26:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:26:07,442 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:26:07,447 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:26:07,453 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 11:26:07,865 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:26:07,872 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:26:07,872 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:26:07,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:07 BoogieIcfgContainer [2022-11-16 11:26:07,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:26:07,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:26:07,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:26:07,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:26:07,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:26:06" (1/3) ... [2022-11-16 11:26:07,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503063a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:26:07, skipping insertion in model container [2022-11-16 11:26:07,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:07" (2/3) ... [2022-11-16 11:26:07,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503063a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:26:07, skipping insertion in model container [2022-11-16 11:26:07,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:07" (3/3) ... [2022-11-16 11:26:07,885 INFO L112 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime.i [2022-11-16 11:26:07,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:26:07,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-16 11:26:08,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:26:08,014 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;@747f7c48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:26:08,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-16 11:26:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 30 states have internal predecessors, (32), 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) [2022-11-16 11:26:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:26:08,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:08,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:26:08,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:08,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:08,040 INFO L85 PathProgramCache]: Analyzing trace with hash 44752, now seen corresponding path program 1 times [2022-11-16 11:26:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:08,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333053065] [2022-11-16 11:26:08,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:08,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:08,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:08,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:08,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:08,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:26:08,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:08,466 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 13 treesize of output 9 [2022-11-16 11:26:08,542 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 11:26:08,544 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 4 case distinctions, treesize of input 22 treesize of output 34 [2022-11-16 11:26:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:08,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:08,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:08,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333053065] [2022-11-16 11:26:08,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333053065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:08,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:08,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:26:08,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490345870] [2022-11-16 11:26:08,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:08,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:08,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:08,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:08,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:08,726 INFO L87 Difference]: Start difference. First operand has 34 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 30 states have internal predecessors, (32), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:08,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:08,809 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-11-16 11:26:08,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:26:08,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 11:26:08,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:08,826 INFO L225 Difference]: With dead ends: 33 [2022-11-16 11:26:08,827 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 11:26:08,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:08,834 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:08,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-11-16 11:26:08,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 11:26:08,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-16 11:26:08,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 27 states have internal predecessors, (29), 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) [2022-11-16 11:26:08,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-11-16 11:26:08,881 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 3 [2022-11-16 11:26:08,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:08,882 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-11-16 11:26:08,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:08,882 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-11-16 11:26:08,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:26:08,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:08,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:26:08,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:09,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:09,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:09,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:09,097 INFO L85 PathProgramCache]: Analyzing trace with hash 44753, now seen corresponding path program 1 times [2022-11-16 11:26:09,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:09,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95943761] [2022-11-16 11:26:09,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:09,098 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 [2022-11-16 11:26:09,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:09,102 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:09,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:26:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:09,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:26:09,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:09,208 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 13 treesize of output 9 [2022-11-16 11:26:09,232 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 11:26:09,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-16 11:26:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:09,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:09,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:09,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95943761] [2022-11-16 11:26:09,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95943761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:09,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:09,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:26:09,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651823304] [2022-11-16 11:26:09,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:09,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:26:09,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:09,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:26:09,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:09,282 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:09,345 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-16 11:26:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:26:09,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 11:26:09,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:09,348 INFO L225 Difference]: With dead ends: 30 [2022-11-16 11:26:09,348 INFO L226 Difference]: Without dead ends: 30 [2022-11-16 11:26:09,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:09,351 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:09,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 46 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:26:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-16 11:26:09,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-16 11:26:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 26 states have internal predecessors, (28), 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) [2022-11-16 11:26:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-11-16 11:26:09,369 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 3 [2022-11-16 11:26:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:09,369 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-11-16 11:26:09,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-11-16 11:26:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:26:09,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:09,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:26:09,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:09,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:09,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:09,605 INFO L85 PathProgramCache]: Analyzing trace with hash 44754, now seen corresponding path program 1 times [2022-11-16 11:26:09,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:09,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956056265] [2022-11-16 11:26:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:09,606 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 [2022-11-16 11:26:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:09,610 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:09,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 11:26:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:09,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:26:09,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:09,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:09,832 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-16 11:26:09,832 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 2 case distinctions, treesize of input 19 treesize of output 39 [2022-11-16 11:26:09,847 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 36 treesize of output 24 [2022-11-16 11:26:09,879 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-16 11:26:09,880 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 [2022-11-16 11:26:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:09,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:09,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:09,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956056265] [2022-11-16 11:26:09,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956056265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:09,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:09,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:26:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138331662] [2022-11-16 11:26:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:09,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:09,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:09,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:09,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:09,980 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:10,113 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-11-16 11:26:10,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:26:10,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 11:26:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:10,115 INFO L225 Difference]: With dead ends: 29 [2022-11-16 11:26:10,115 INFO L226 Difference]: Without dead ends: 29 [2022-11-16 11:26:10,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:26:10,117 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:10,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 13 Unchecked, 0.1s Time] [2022-11-16 11:26:10,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-16 11:26:10,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-16 11:26:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.588235294117647) internal successors, (27), 25 states have internal predecessors, (27), 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) [2022-11-16 11:26:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-11-16 11:26:10,122 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 3 [2022-11-16 11:26:10,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:10,123 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-11-16 11:26:10,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,123 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-11-16 11:26:10,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:26:10,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:10,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:26:10,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:10,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:10,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:10,337 INFO L85 PathProgramCache]: Analyzing trace with hash 44755, now seen corresponding path program 1 times [2022-11-16 11:26:10,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:10,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735178201] [2022-11-16 11:26:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:10,338 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 [2022-11-16 11:26:10,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:10,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:10,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:10,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:26:10,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:10,426 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 26 treesize of output 18 [2022-11-16 11:26:10,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:10,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-16 11:26:10,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 11:26:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:10,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:10,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:10,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735178201] [2022-11-16 11:26:10,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735178201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:10,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:10,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:26:10,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621024676] [2022-11-16 11:26:10,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:10,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:26:10,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:10,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:26:10,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:10,457 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:10,498 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-16 11:26:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:26:10,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 11:26:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:10,500 INFO L225 Difference]: With dead ends: 28 [2022-11-16 11:26:10,500 INFO L226 Difference]: Without dead ends: 28 [2022-11-16 11:26:10,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:10,501 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:10,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:26:10,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-16 11:26:10,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-16 11:26:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 16 states have (on average 1.625) internal successors, (26), 24 states have internal predecessors, (26), 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) [2022-11-16 11:26:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-11-16 11:26:10,506 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 3 [2022-11-16 11:26:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:10,506 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-16 11:26:10,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-11-16 11:26:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:26:10,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:10,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:10,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:10,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:10,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:10,727 INFO L85 PathProgramCache]: Analyzing trace with hash 658165672, now seen corresponding path program 1 times [2022-11-16 11:26:10,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:10,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300950415] [2022-11-16 11:26:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:10,728 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 [2022-11-16 11:26:10,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:10,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:10,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 11:26:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:10,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:26:10,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:10,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:10,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:10,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300950415] [2022-11-16 11:26:10,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300950415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:10,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:10,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:26:10,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885766007] [2022-11-16 11:26:10,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:10,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:10,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:10,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:10,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:10,851 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:10,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:10,944 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-11-16 11:26:10,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:26:10,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-16 11:26:10,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:10,947 INFO L225 Difference]: With dead ends: 32 [2022-11-16 11:26:10,947 INFO L226 Difference]: Without dead ends: 29 [2022-11-16 11:26:10,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:26:10,949 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:10,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 77 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:26:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-16 11:26:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-16 11:26:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.588235294117647) internal successors, (27), 25 states have internal predecessors, (27), 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) [2022-11-16 11:26:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-11-16 11:26:10,954 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 12 [2022-11-16 11:26:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:10,955 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-11-16 11:26:10,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-11-16 11:26:10,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:26:10,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:10,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:10,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:11,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:11,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1349907399, now seen corresponding path program 1 times [2022-11-16 11:26:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:11,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745015320] [2022-11-16 11:26:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:11,159 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 [2022-11-16 11:26:11,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:11,160 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:11,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 11:26:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:11,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:26:11,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:11,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:11,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:11,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745015320] [2022-11-16 11:26:11,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745015320] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:26:11,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:26:11,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:26:11,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621531631] [2022-11-16 11:26:11,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:11,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:26:11,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:11,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:26:11,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:26:11,438 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:26:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:11,660 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-16 11:26:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:26:11,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-11-16 11:26:11,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:11,664 INFO L225 Difference]: With dead ends: 38 [2022-11-16 11:26:11,664 INFO L226 Difference]: Without dead ends: 32 [2022-11-16 11:26:11,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:26:11,665 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 14 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:11,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 120 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:26:11,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-16 11:26:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-16 11:26:11,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.5) internal successors, (30), 28 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) [2022-11-16 11:26:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-11-16 11:26:11,669 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 13 [2022-11-16 11:26:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:11,673 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-11-16 11:26:11,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:26:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-11-16 11:26:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 11:26:11,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:11,675 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:11,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:11,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:11,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:11,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1601039336, now seen corresponding path program 2 times [2022-11-16 11:26:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:11,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779459047] [2022-11-16 11:26:11,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:26:11,880 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 [2022-11-16 11:26:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:11,882 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:11,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:11,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:26:11,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:26:11,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:26:11,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 11:26:11,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:11,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:11,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779459047] [2022-11-16 11:26:11,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779459047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:11,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:11,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:26:11,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523010316] [2022-11-16 11:26:11,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:11,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:11,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:11,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:11,990 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:12,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:12,047 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-16 11:26:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:26:12,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-16 11:26:12,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:12,049 INFO L225 Difference]: With dead ends: 35 [2022-11-16 11:26:12,049 INFO L226 Difference]: Without dead ends: 33 [2022-11-16 11:26:12,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:26:12,050 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:12,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:26:12,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-16 11:26:12,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-16 11:26:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 29 states have internal predecessors, (31), 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) [2022-11-16 11:26:12,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-16 11:26:12,055 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 16 [2022-11-16 11:26:12,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:12,056 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-16 11:26:12,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-16 11:26:12,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:26:12,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:12,057 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:12,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:12,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:12,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:12,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:12,271 INFO L85 PathProgramCache]: Analyzing trace with hash 555073211, now seen corresponding path program 1 times [2022-11-16 11:26:12,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:12,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28396279] [2022-11-16 11:26:12,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:12,272 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 [2022-11-16 11:26:12,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:12,275 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:12,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 11:26:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:12,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:26:12,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:12,445 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 [2022-11-16 11:26:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 11:26:12,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:12,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:12,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28396279] [2022-11-16 11:26:12,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28396279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:12,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:12,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:26:12,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639068651] [2022-11-16 11:26:12,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:12,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:26:12,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:12,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:26:12,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:12,454 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:12,503 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-16 11:26:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:26:12,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-16 11:26:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:12,505 INFO L225 Difference]: With dead ends: 31 [2022-11-16 11:26:12,505 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 11:26:12,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:12,506 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:12,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:26:12,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 11:26:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-16 11:26:12,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.380952380952381) internal successors, (29), 27 states have internal predecessors, (29), 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) [2022-11-16 11:26:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-11-16 11:26:12,510 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 17 [2022-11-16 11:26:12,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:12,512 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-11-16 11:26:12,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-11-16 11:26:12,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:26:12,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:12,513 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:12,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:12,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:12,726 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:12,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash 555073212, now seen corresponding path program 1 times [2022-11-16 11:26:12,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:12,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320568461] [2022-11-16 11:26:12,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:12,728 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 [2022-11-16 11:26:12,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:12,729 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:12,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-16 11:26:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:12,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 11:26:12,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:13,026 INFO L321 Elim1Store]: treesize reduction 60, result has 36.8 percent of original size [2022-11-16 11:26:13,027 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 4 case distinctions, treesize of input 26 treesize of output 54 [2022-11-16 11:26:13,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-11-16 11:26:13,250 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 14 treesize of output 20 [2022-11-16 11:26:13,290 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 11:26:13,290 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 [2022-11-16 11:26:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 11:26:13,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:13,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:13,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320568461] [2022-11-16 11:26:13,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320568461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:13,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:13,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:26:13,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339167103] [2022-11-16 11:26:13,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:13,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:26:13,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:13,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:26:13,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:26:13,311 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:13,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:13,436 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-16 11:26:13,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:26:13,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-16 11:26:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:13,438 INFO L225 Difference]: With dead ends: 31 [2022-11-16 11:26:13,438 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 11:26:13,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:26:13,439 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 23 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:13,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 32 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:26:13,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 11:26:13,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-16 11:26:13,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 26 states have internal predecessors, (28), 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) [2022-11-16 11:26:13,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-11-16 11:26:13,443 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2022-11-16 11:26:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:13,443 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-11-16 11:26:13,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-11-16 11:26:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:26:13,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:13,444 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:13,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:13,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:13,655 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:13,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:13,656 INFO L85 PathProgramCache]: Analyzing trace with hash 555073213, now seen corresponding path program 1 times [2022-11-16 11:26:13,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:13,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315058973] [2022-11-16 11:26:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:13,656 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 [2022-11-16 11:26:13,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:13,658 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:13,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:13,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:26:13,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:13,818 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 [2022-11-16 11:26:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 11:26:13,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:13,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:13,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315058973] [2022-11-16 11:26:13,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315058973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:13,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:13,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:26:13,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670758621] [2022-11-16 11:26:13,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:13,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:26:13,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:13,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:26:13,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:13,836 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:13,869 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-16 11:26:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:26:13,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-16 11:26:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:13,873 INFO L225 Difference]: With dead ends: 28 [2022-11-16 11:26:13,873 INFO L226 Difference]: Without dead ends: 28 [2022-11-16 11:26:13,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:26:13,875 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:13,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:26:13,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-16 11:26:13,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-16 11:26:13,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 24 states have internal predecessors, (26), 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) [2022-11-16 11:26:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-11-16 11:26:13,882 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 17 [2022-11-16 11:26:13,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:13,882 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-16 11:26:13,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:13,882 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-11-16 11:26:13,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:26:13,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:13,883 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:13,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:14,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:14,084 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash 555073214, now seen corresponding path program 1 times [2022-11-16 11:26:14,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:14,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637532907] [2022-11-16 11:26:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:14,085 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 [2022-11-16 11:26:14,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:14,086 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:14,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:14,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 11:26:14,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:14,581 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 11:26:14,582 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 [2022-11-16 11:26:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 11:26:14,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:14,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:14,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637532907] [2022-11-16 11:26:14,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637532907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:14,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:14,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:26:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406768118] [2022-11-16 11:26:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:14,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:14,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:14,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:26:14,679 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:14,794 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-11-16 11:26:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:26:14,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-16 11:26:14,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:14,799 INFO L225 Difference]: With dead ends: 38 [2022-11-16 11:26:14,799 INFO L226 Difference]: Without dead ends: 38 [2022-11-16 11:26:14,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:26:14,800 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:14,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 34 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2022-11-16 11:26:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-16 11:26:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-16 11:26:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 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) [2022-11-16 11:26:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-11-16 11:26:14,804 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 17 [2022-11-16 11:26:14,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:14,804 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-11-16 11:26:14,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:26:14,804 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-11-16 11:26:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 11:26:14,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:14,805 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:14,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:15,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:15,018 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:15,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:15,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1978376583, now seen corresponding path program 1 times [2022-11-16 11:26:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:15,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345093596] [2022-11-16 11:26:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:15,019 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 [2022-11-16 11:26:15,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:15,020 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:15,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:15,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-16 11:26:15,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:15,502 INFO L321 Elim1Store]: treesize reduction 60, result has 36.8 percent of original size [2022-11-16 11:26:15,503 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 4 case distinctions, treesize of input 26 treesize of output 54 [2022-11-16 11:26:15,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-11-16 11:26:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:16,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-16 11:26:16,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 11:26:16,231 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 14 treesize of output 20 [2022-11-16 11:26:16,346 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-16 11:26:16,347 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 [2022-11-16 11:26:16,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-16 11:26:17,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:17,097 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-16 11:26:17,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2022-11-16 11:26:17,105 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 12 treesize of output 11 [2022-11-16 11:26:17,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:26:17,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-16 11:26:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:26:17,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:17,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:17,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345093596] [2022-11-16 11:26:17,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345093596] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:17,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1805246993] [2022-11-16 11:26:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:17,615 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 11:26:17,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 [2022-11-16 11:26:17,621 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 11:26:17,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-16 11:26:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:18,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-16 11:26:18,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:18,362 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-16 11:26:18,363 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 [2022-11-16 11:26:18,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:18,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-16 11:26:18,713 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 12 treesize of output 11 [2022-11-16 11:26:18,751 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 14 treesize of output 20 [2022-11-16 11:26:18,843 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-16 11:26:18,844 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 [2022-11-16 11:26:18,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-16 11:26:19,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:19,203 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-16 11:26:19,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2022-11-16 11:26:19,209 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 12 treesize of output 11 [2022-11-16 11:26:19,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:26:19,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-16 11:26:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:26:19,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:19,539 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_424 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#p~1#1.base| v_ArrVal_424) |c_~#a~0.base|) |c_~#a~0.offset|))) is different from false [2022-11-16 11:26:19,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1805246993] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:19,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:26:19,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2022-11-16 11:26:19,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838377247] [2022-11-16 11:26:19,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:19,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:26:19,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:19,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:26:19,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=258, Unknown=36, NotChecked=34, Total=380 [2022-11-16 11:26:19,543 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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) [2022-11-16 11:26:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:20,028 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-11-16 11:26:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:26:20,029 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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 31 [2022-11-16 11:26:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:20,031 INFO L225 Difference]: With dead ends: 62 [2022-11-16 11:26:20,031 INFO L226 Difference]: Without dead ends: 62 [2022-11-16 11:26:20,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 16 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=392, Unknown=47, NotChecked=42, Total=552 [2022-11-16 11:26:20,032 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:20,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 98 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 54 Unchecked, 0.2s Time] [2022-11-16 11:26:20,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-16 11:26:20,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2022-11-16 11:26:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 50 states have internal predecessors, (57), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-16 11:26:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-11-16 11:26:20,038 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 31 [2022-11-16 11:26:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:20,039 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-11-16 11:26:20,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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) [2022-11-16 11:26:20,039 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-11-16 11:26:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:26:20,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:20,040 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:20,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 [2022-11-16 11:26:20,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:20,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt [2022-11-16 11:26:20,456 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:20,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:20,456 INFO L85 PathProgramCache]: Analyzing trace with hash -459313580, now seen corresponding path program 2 times [2022-11-16 11:26:20,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:20,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284260912] [2022-11-16 11:26:20,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:26:20,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:20,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:20,458 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:20,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-16 11:26:20,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:26:20,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:26:20,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:26:20,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 11:26:20,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-16 11:26:20,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:20,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284260912] [2022-11-16 11:26:20,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284260912] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:26:20,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:26:20,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:26:20,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777555518] [2022-11-16 11:26:20,811 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:20,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:26:20,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:20,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:26:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:26:20,812 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 11:26:20,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:20,930 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-11-16 11:26:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:26:20,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-11-16 11:26:20,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:20,931 INFO L225 Difference]: With dead ends: 43 [2022-11-16 11:26:20,931 INFO L226 Difference]: Without dead ends: 37 [2022-11-16 11:26:20,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:26:20,932 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:20,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 125 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:26:20,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-16 11:26:20,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-16 11:26:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 32 states have internal predecessors, (34), 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) [2022-11-16 11:26:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2022-11-16 11:26:20,935 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 32 [2022-11-16 11:26:20,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:20,936 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2022-11-16 11:26:20,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 11:26:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2022-11-16 11:26:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:26:20,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:20,937 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:20,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-16 11:26:21,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:21,147 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:21,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:21,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1200131997, now seen corresponding path program 1 times [2022-11-16 11:26:21,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:21,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571466548] [2022-11-16 11:26:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:21,148 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 [2022-11-16 11:26:21,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:21,149 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:21,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-16 11:26:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:21,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-16 11:26:21,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:21,706 INFO L321 Elim1Store]: treesize reduction 60, result has 36.8 percent of original size [2022-11-16 11:26:21,707 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 4 case distinctions, treesize of input 26 treesize of output 54 [2022-11-16 11:26:21,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-16 11:26:22,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:22,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-11-16 11:26:22,629 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 12 treesize of output 11 [2022-11-16 11:26:22,770 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 14 treesize of output 20 [2022-11-16 11:26:22,900 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-16 11:26:22,900 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 [2022-11-16 11:26:22,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-16 11:26:23,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:23,774 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-16 11:26:23,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2022-11-16 11:26:23,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:26:23,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 11:26:23,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-16 11:26:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 11:26:24,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:24,313 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_589 (Array (_ BitVec 32) (_ BitVec 32)))) (bvult (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#p~1#1.base| v_ArrVal_589) |c_~#a~0.base|) |c_~#a~0.offset|) |c_#StackHeapBarrier|)) is different from false [2022-11-16 11:26:24,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:24,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571466548] [2022-11-16 11:26:24,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571466548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:24,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1069740898] [2022-11-16 11:26:24,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:24,315 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 11:26:24,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 [2022-11-16 11:26:24,317 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 11:26:24,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-16 11:26:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:25,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-16 11:26:25,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:25,061 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-16 11:26:25,061 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 [2022-11-16 11:26:25,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 11:26:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:26,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-16 11:26:26,418 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 12 treesize of output 11 [2022-11-16 11:26:26,477 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 14 treesize of output 20 [2022-11-16 11:26:26,600 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-16 11:26:26,601 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 [2022-11-16 11:26:26,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-16 11:26:27,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:27,041 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-16 11:26:27,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2022-11-16 11:26:27,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:26:27,102 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 12 treesize of output 11 [2022-11-16 11:26:27,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-16 11:26:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:26:27,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:27,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1069740898] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:27,482 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:26:27,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 21 [2022-11-16 11:26:27,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602003030] [2022-11-16 11:26:27,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:27,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:26:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:27,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:26:27,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=478, Unknown=45, NotChecked=46, Total=650 [2022-11-16 11:26:27,485 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 23 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 11:26:28,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:28,105 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2022-11-16 11:26:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:26:28,105 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2022-11-16 11:26:28,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:28,106 INFO L225 Difference]: With dead ends: 36 [2022-11-16 11:26:28,107 INFO L226 Difference]: Without dead ends: 36 [2022-11-16 11:26:28,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 34 SyntacticMatches, 14 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=104, Invalid=658, Unknown=54, NotChecked=54, Total=870 [2022-11-16 11:26:28,108 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:28,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 76 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 97 Unchecked, 0.3s Time] [2022-11-16 11:26:28,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-16 11:26:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-16 11:26:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1) internal successors, (33), 31 states have internal predecessors, (33), 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) [2022-11-16 11:26:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-11-16 11:26:28,113 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 32 [2022-11-16 11:26:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:28,113 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-11-16 11:26:28,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 11:26:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-11-16 11:26:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:28,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:28,115 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:28,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:28,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:28,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:28,522 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:28,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:28,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1450613687, now seen corresponding path program 1 times [2022-11-16 11:26:28,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:28,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496039841] [2022-11-16 11:26:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:28,523 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 [2022-11-16 11:26:28,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:28,525 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:28,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-16 11:26:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:28,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-16 11:26:28,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:29,019 INFO L321 Elim1Store]: treesize reduction 96, result has 22.0 percent of original size [2022-11-16 11:26:29,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 57 [2022-11-16 11:26:29,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 11:26:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:30,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-16 11:26:30,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 11:26:30,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-11-16 11:26:30,464 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-11-16 11:26:30,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 51 [2022-11-16 11:26:30,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 23 [2022-11-16 11:26:31,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:31,815 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-16 11:26:31,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 59 [2022-11-16 11:26:31,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2022-11-16 11:26:31,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 11:26:32,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2022-11-16 11:26:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:26:32,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:32,495 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_771 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#p~1#1.base| v_ArrVal_771) |c_~#a~0.base|) |c_~#a~0.offset|)) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-16 11:26:32,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:26:32,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496039841] [2022-11-16 11:26:32,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496039841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:32,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1568980668] [2022-11-16 11:26:32,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:32,498 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 11:26:32,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 [2022-11-16 11:26:32,503 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 11:26:32,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-16 11:26:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:33,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-16 11:26:33,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:33,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:33,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:33,384 INFO L321 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2022-11-16 11:26:33,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 50 [2022-11-16 11:26:33,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-16 11:26:37,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:37,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-11-16 11:26:37,823 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 12 treesize of output 11 [2022-11-16 11:26:38,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:38,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:38,147 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-16 11:26:38,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 48 [2022-11-16 11:26:38,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:38,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:38,459 INFO L321 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2022-11-16 11:26:38,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 55 [2022-11-16 11:26:38,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2022-11-16 11:26:48,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:48,897 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-16 11:26:48,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-16 11:26:48,912 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 12 treesize of output 11 [2022-11-16 11:26:48,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-16 11:26:49,370 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 11:26:49,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2022-11-16 11:26:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:26:49,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:50,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1568980668] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:50,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:26:50,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 31 [2022-11-16 11:26:50,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010528341] [2022-11-16 11:26:50,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:50,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-16 11:26:50,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:26:50,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-16 11:26:50,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1197, Unknown=62, NotChecked=72, Total=1482 [2022-11-16 11:26:50,435 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 33 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 30 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 11:26:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:53,398 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-11-16 11:26:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:26:53,399 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 30 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 33 [2022-11-16 11:26:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:53,400 INFO L225 Difference]: With dead ends: 35 [2022-11-16 11:26:53,400 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 11:26:53,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 27 SyntacticMatches, 14 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=251, Invalid=2104, Unknown=99, NotChecked=96, Total=2550 [2022-11-16 11:26:53,402 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:53,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 85 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 86 Unchecked, 0.1s Time] [2022-11-16 11:26:53,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 11:26:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-16 11:26:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 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) [2022-11-16 11:26:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-16 11:26:53,406 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 33 [2022-11-16 11:26:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:53,406 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-16 11:26:53,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 30 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 11:26:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-16 11:26:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 11:26:53,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:53,408 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:53,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2022-11-16 11:26:53,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:53,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:26:53,814 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-11-16 11:26:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:53,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2019351264, now seen corresponding path program 1 times [2022-11-16 11:26:53,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:26:53,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097991139] [2022-11-16 11:26:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:53,815 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 [2022-11-16 11:26:53,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:26:53,816 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -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) [2022-11-16 11:26:53,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-16 11:26:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:54,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-16 11:26:54,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:54,449 INFO L321 Elim1Store]: treesize reduction 96, result has 22.0 percent of original size [2022-11-16 11:26:54,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 57 [2022-11-16 11:26:54,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-16 11:26:55,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:55,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:55,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2022-11-16 11:26:55,228 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 12 treesize of output 11 [2022-11-16 11:26:55,791 INFO L321 Elim1Store]: treesize reduction 180, result has 22.7 percent of original size [2022-11-16 11:26:55,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 222 treesize of output 248 [2022-11-16 11:26:55,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:55,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 34 [2022-11-16 11:26:56,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:56,807 INFO L321 Elim1Store]: treesize reduction 82, result has 15.5 percent of original size [2022-11-16 11:26:56,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 95 treesize of output 109 [2022-11-16 11:26:56,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 33 [2022-11-16 11:26:56,867 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 12 treesize of output 1 [2022-11-16 11:26:56,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2022-11-16 11:26:57,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:26:57,211 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 11:26:57,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 47 [2022-11-16 11:26:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 11:26:59,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:00,003 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_960 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_old_#valid#1| (store (store |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#p~1#1.base| v_ArrVal_960) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 1)) |c_ULTIMATE.start_main_~#p~1#1.base| (_ bv0 1)))) is different from false [2022-11-16 11:27:00,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:27:00,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097991139] [2022-11-16 11:27:00,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097991139] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:00,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [753842824] [2022-11-16 11:27:00,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:00,006 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 11:27:00,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 [2022-11-16 11:27:00,012 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 11:27:00,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-11-16 11:27:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:01,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-16 11:27:01,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:03,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:03,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:04,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:04,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:04,088 INFO L321 Elim1Store]: treesize reduction 92, result has 25.2 percent of original size [2022-11-16 11:27:04,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 75 [2022-11-16 11:27:04,110 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 32 treesize of output 16 [2022-11-16 11:27:06,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:06,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:06,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2022-11-16 11:27:06,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 11:27:11,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:11,420 INFO L321 Elim1Store]: treesize reduction 134, result has 25.1 percent of original size [2022-11-16 11:27:11,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 126 treesize of output 158 [2022-11-16 11:27:11,453 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 11:27:11,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 43 treesize of output 19 [2022-11-16 11:27:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:12,995 INFO L321 Elim1Store]: treesize reduction 82, result has 15.5 percent of original size [2022-11-16 11:27:12,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 110 treesize of output 120 [2022-11-16 11:27:13,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 33 [2022-11-16 11:27:13,359 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 11:27:13,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 35 [2022-11-16 11:27:13,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-11-16 11:27:14,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:27:14,862 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 11:27:14,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 54 [2022-11-16 11:27:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 5 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-16 11:27:25,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:27:25,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [753842824] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:25,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:27:25,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 30 [2022-11-16 11:27:25,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991261102] [2022-11-16 11:27:25,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:27:25,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-16 11:27:25,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:27:25,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-16 11:27:25,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1204, Unknown=58, NotChecked=72, Total=1482 [2022-11-16 11:27:25,985 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 32 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 11:27:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:27,704 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-11-16 11:27:27,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:27:27,705 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 34 [2022-11-16 11:27:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:27,705 INFO L225 Difference]: With dead ends: 34 [2022-11-16 11:27:27,706 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:27:27,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 31 SyntacticMatches, 14 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=197, Invalid=1625, Unknown=74, NotChecked=84, Total=1980 [2022-11-16 11:27:27,707 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:27,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 70 Unchecked, 0.0s Time] [2022-11-16 11:27:27,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:27:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:27:27,708 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) [2022-11-16 11:27:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:27:27,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-11-16 11:27:27,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:27,709 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:27:27,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 11:27:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:27:27,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:27:27,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2022-11-16 11:27:27,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2022-11-16 11:27:27,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2022-11-16 11:27:27,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2022-11-16 11:27:27,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2022-11-16 11:27:27,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2022-11-16 11:27:27,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2022-11-16 11:27:27,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2022-11-16 11:27:27,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2022-11-16 11:27:27,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2022-11-16 11:27:27,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE (3 of 14 remaining) [2022-11-16 11:27:27,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE (2 of 14 remaining) [2022-11-16 11:27:27,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE (1 of 14 remaining) [2022-11-16 11:27:27,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (0 of 14 remaining) [2022-11-16 11:27:27,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:27,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:28,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:27:28,122 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:28,125 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:27:28,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:27:28 BoogieIcfgContainer [2022-11-16 11:27:28,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:27:28,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:27:28,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:27:28,129 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:27:28,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:07" (3/4) ... [2022-11-16 11:27:28,133 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:27:28,141 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2022-11-16 11:27:28,146 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-16 11:27:28,146 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 11:27:28,147 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:27:28,147 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:27:28,185 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:27:28,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:27:28,186 INFO L158 Benchmark]: Toolchain (without parser) took 81835.56ms. Allocated memory was 71.3MB in the beginning and 155.2MB in the end (delta: 83.9MB). Free memory was 52.4MB in the beginning and 98.5MB in the end (delta: -46.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-16 11:27:28,188 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:28,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.34ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 41.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:27:28,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.14ms. Allocated memory is still 71.3MB. Free memory was 41.4MB in the beginning and 39.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:27:28,191 INFO L158 Benchmark]: Boogie Preprocessor took 73.43ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 37.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:28,191 INFO L158 Benchmark]: RCFGBuilder took 716.64ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 37.5MB in the beginning and 74.4MB in the end (delta: -36.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2022-11-16 11:27:28,192 INFO L158 Benchmark]: TraceAbstraction took 80250.90ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 73.5MB in the beginning and 101.2MB in the end (delta: -27.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-11-16 11:27:28,192 INFO L158 Benchmark]: Witness Printer took 57.09ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 98.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:27:28,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.34ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 41.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.14ms. Allocated memory is still 71.3MB. Free memory was 41.4MB in the beginning and 39.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.43ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 37.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 716.64ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 37.5MB in the beginning and 74.4MB in the end (delta: -36.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 80250.90ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 73.5MB in the beginning and 101.2MB in the end (delta: -27.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 57.09ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 98.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. 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: -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: 651]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 651]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 651]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 646]: 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, 34 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 80.1s, OverallIterations: 16, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 1060 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 337 IncrementalHoareTripleChecker+Unchecked, 725 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 392 IncrementalHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 335 mSDtfsCounter, 392 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 275 SyntacticMatches, 60 SemanticMatches, 182 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2009 ImplicationChecksByTransitivity, 51.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=12, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 62.2s InterpolantComputationTime, 413 NumberOfCodeBlocks, 409 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 436 ConstructedInterpolants, 192 QuantifiedInterpolants, 10539 SizeOfPredicates, 89 NumberOfNonLiveVariables, 3045 ConjunctsInSsa, 448 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 284/614 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:27:28,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6447aa76-25ca-4eee-b9e5-901013e3bb35/bin/uautomizer-tPACEb0tL8/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