./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R --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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:47:03,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:47:03,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:47:03,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:47:03,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:47:03,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:47:03,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:47:03,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:47:03,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:47:03,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:47:03,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:47:03,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:47:03,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:47:03,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:47:03,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:47:03,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:47:03,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:47:03,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:47:03,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:47:03,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:47:03,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:47:03,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:47:03,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:47:03,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:47:03,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:47:03,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:47:03,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:47:03,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:47:03,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:47:03,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:47:03,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:47:03,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:47:03,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:47:03,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:47:03,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:47:03,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:47:03,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:47:03,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:47:03,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:47:03,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:47:03,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:47:03,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 16:47:03,843 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:47:03,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:47:03,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:47:03,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:47:03,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:47:03,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:47:03,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:47:03,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:47:03,847 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:47:03,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:47:03,850 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:47:03,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:47:03,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:47:03,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:47:03,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:47:03,852 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 16:47:03,852 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 16:47:03,852 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 16:47:03,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:47:03,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:47:03,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:47:03,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:47:03,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:47:03,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:47:03,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:47:03,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:47:03,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:47:03,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:47:03,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:47:03,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:47:03,856 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:47:03,856 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:47:03,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:47:03,857 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2022-11-25 16:47:04,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:47:04,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:47:04,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:47:04,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:47:04,205 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:47:04,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2022-11-25 16:47:07,355 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:47:07,669 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:47:07,670 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2022-11-25 16:47:07,691 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data/361d845de/441f5d1308e64b9986acc0a9993f303c/FLAGd336aec46 [2022-11-25 16:47:07,713 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data/361d845de/441f5d1308e64b9986acc0a9993f303c [2022-11-25 16:47:07,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:47:07,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:47:07,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:47:07,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:47:07,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:47:07,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:07" (1/1) ... [2022-11-25 16:47:07,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2ec252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:07, skipping insertion in model container [2022-11-25 16:47:07,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:07" (1/1) ... [2022-11-25 16:47:07,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:47:07,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:47:08,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:47:08,256 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) [2022-11-25 16:47:08,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bc881d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:08, skipping insertion in model container [2022-11-25 16:47:08,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:47:08,258 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-25 16:47:08,260 INFO L158 Benchmark]: Toolchain (without parser) took 539.13ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 71.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 16:47:08,260 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:47:08,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.46ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 71.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 16:47:08,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.46ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 71.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R --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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:47:10,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:47:10,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:47:10,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:47:10,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:47:10,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:47:10,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:47:10,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:47:10,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:47:10,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:47:10,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:47:10,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:47:10,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:47:10,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:47:10,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:47:10,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:47:10,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:47:10,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:47:10,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:47:10,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:47:10,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:47:10,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:47:10,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:47:10,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:47:10,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:47:10,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:47:10,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:47:10,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:47:10,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:47:10,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:47:10,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:47:10,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:47:10,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:47:10,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:47:10,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:47:10,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:47:10,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:47:10,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:47:10,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:47:10,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:47:10,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:47:10,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-25 16:47:10,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:47:10,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:47:10,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:47:10,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:47:10,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:47:10,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:47:10,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:47:10,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:47:10,698 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:47:10,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:47:10,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:47:10,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:47:10,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:47:10,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:47:10,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:47:10,700 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 16:47:10,701 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 16:47:10,701 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 16:47:10,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:47:10,702 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:47:10,702 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 16:47:10,702 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 16:47:10,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:47:10,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:47:10,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:47:10,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:47:10,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:47:10,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:47:10,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:47:10,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:47:10,705 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 16:47:10,705 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 16:47:10,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:47:10,706 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:47:10,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:47:10,711 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 16:47:10,711 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2022-11-25 16:47:11,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:47:11,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:47:11,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:47:11,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:47:11,222 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:47:11,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2022-11-25 16:47:14,439 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:47:14,715 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:47:14,716 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2022-11-25 16:47:14,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data/0a2131352/9440e2d3f78045cca6274f2a509f33bb/FLAG4d8013d34 [2022-11-25 16:47:14,749 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/data/0a2131352/9440e2d3f78045cca6274f2a509f33bb [2022-11-25 16:47:14,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:47:14,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:47:14,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:47:14,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:47:14,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:47:14,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:14" (1/1) ... [2022-11-25 16:47:14,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0cf19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:14, skipping insertion in model container [2022-11-25 16:47:14,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:14" (1/1) ... [2022-11-25 16:47:14,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:47:14,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:47:15,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:47:15,443 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 16:47:15,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:47:15,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:47:15,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:47:15,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:47:15,713 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:47:15,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15 WrapperNode [2022-11-25 16:47:15,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:47:15,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:47:15,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:47:15,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:47:15,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,805 INFO L138 Inliner]: procedures = 169, calls = 77, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 55 [2022-11-25 16:47:15,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:47:15,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:47:15,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:47:15,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:47:15,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,840 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:47:15,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:47:15,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:47:15,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:47:15,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (1/1) ... [2022-11-25 16:47:15,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:47:15,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:47:15,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:47:15,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:47:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 16:47:15,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 16:47:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:47:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:47:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 16:47:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:47:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 16:47:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:47:15,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:47:16,127 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:47:16,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:47:16,318 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:47:16,325 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:47:16,325 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:47:16,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:16 BoogieIcfgContainer [2022-11-25 16:47:16,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:47:16,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:47:16,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:47:16,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:47:16,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:47:14" (1/3) ... [2022-11-25 16:47:16,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f14709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:47:16, skipping insertion in model container [2022-11-25 16:47:16,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:15" (2/3) ... [2022-11-25 16:47:16,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f14709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:47:16, skipping insertion in model container [2022-11-25 16:47:16,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:16" (3/3) ... [2022-11-25 16:47:16,336 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2022-11-25 16:47:16,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:47:16,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 16:47:16,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:47:16,433 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=PETRI_NET, 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;@3aa0e4ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:47:16,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 16:47:16,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.565217391304348) internal successors, (36), 31 states have internal predecessors, (36), 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) [2022-11-25 16:47:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 16:47:16,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:16,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:16,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:16,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1378433930, now seen corresponding path program 1 times [2022-11-25 16:47:16,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:16,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013438329] [2022-11-25 16:47:16,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:16,474 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 [2022-11-25 16:47:16,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:16,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:16,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:16,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:47:16,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:16,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:16,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:16,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013438329] [2022-11-25 16:47:16,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013438329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:16,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:16,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:47:16,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942086188] [2022-11-25 16:47:16,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:16,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:47:16,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:16,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:47:16,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:16,801 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.565217391304348) internal successors, (36), 31 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 5 states have (on average 2.0) 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) [2022-11-25 16:47:16,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:16,883 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-11-25 16:47:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:47:16,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) 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 [2022-11-25 16:47:16,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:16,895 INFO L225 Difference]: With dead ends: 62 [2022-11-25 16:47:16,895 INFO L226 Difference]: Without dead ends: 58 [2022-11-25 16:47:16,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:16,900 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 28 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:16,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 151 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:47:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-25 16:47:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 36. [2022-11-25 16:47:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2022-11-25 16:47:16,945 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 12 [2022-11-25 16:47:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:16,946 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-11-25 16:47:16,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) 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) [2022-11-25 16:47:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-11-25 16:47:16,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 16:47:16,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:16,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:16,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:17,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:17,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:17,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:17,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1378399289, now seen corresponding path program 1 times [2022-11-25 16:47:17,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:17,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703553480] [2022-11-25 16:47:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:17,162 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 [2022-11-25 16:47:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:17,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:17,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:17,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:47:17,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:17,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:17,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:17,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703553480] [2022-11-25 16:47:17,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703553480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:17,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:17,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:47:17,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906018281] [2022-11-25 16:47:17,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:17,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:47:17,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:17,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:47:17,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:17,362 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 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) [2022-11-25 16:47:17,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:17,403 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-11-25 16:47:17,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:47:17,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 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 [2022-11-25 16:47:17,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:17,405 INFO L225 Difference]: With dead ends: 35 [2022-11-25 16:47:17,405 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 16:47:17,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:17,407 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:17,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 91 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:47:17,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 16:47:17,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-25 16:47:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.44) internal successors, (36), 31 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-11-25 16:47:17,416 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 12 [2022-11-25 16:47:17,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:17,419 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-11-25 16:47:17,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2022-11-25 16:47:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-11-25 16:47:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 16:47:17,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:17,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:17,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:17,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:17,627 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:17,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:17,628 INFO L85 PathProgramCache]: Analyzing trace with hash 364376405, now seen corresponding path program 1 times [2022-11-25 16:47:17,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:17,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954156902] [2022-11-25 16:47:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:17,629 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 [2022-11-25 16:47:17,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:17,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:17,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:17,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:47:17,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:17,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:17,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:17,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954156902] [2022-11-25 16:47:17,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954156902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:17,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:17,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:47:17,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310566201] [2022-11-25 16:47:17,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:17,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:47:17,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:17,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:47:17,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:47:17,934 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-25 16:47:18,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:18,065 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-11-25 16:47:18,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:47:18,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2022-11-25 16:47:18,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:18,067 INFO L225 Difference]: With dead ends: 43 [2022-11-25 16:47:18,067 INFO L226 Difference]: Without dead ends: 43 [2022-11-25 16:47:18,067 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 [2022-11-25 16:47:18,071 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:18,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 49 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:47:18,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-25 16:47:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2022-11-25 16:47:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 35 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-11-25 16:47:18,077 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 12 [2022-11-25 16:47:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:18,078 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-25 16:47:18,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-25 16:47:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-11-25 16:47:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 16:47:18,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:18,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:18,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:18,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:18,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:18,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash 364376406, now seen corresponding path program 1 times [2022-11-25 16:47:18,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:18,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566211659] [2022-11-25 16:47:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:18,304 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 [2022-11-25 16:47:18,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:18,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:18,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:18,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:47:18,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:18,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:18,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:18,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566211659] [2022-11-25 16:47:18,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566211659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:18,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:18,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:47:18,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116313878] [2022-11-25 16:47:18,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:18,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:47:18,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:18,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:47:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:47:18,555 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-25 16:47:18,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:18,650 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2022-11-25 16:47:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:47:18,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2022-11-25 16:47:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:18,653 INFO L225 Difference]: With dead ends: 64 [2022-11-25 16:47:18,653 INFO L226 Difference]: Without dead ends: 64 [2022-11-25 16:47:18,653 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 [2022-11-25 16:47:18,654 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 26 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:18,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 105 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:47:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-25 16:47:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 56. [2022-11-25 16:47:18,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 52 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2022-11-25 16:47:18,661 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 12 [2022-11-25 16:47:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:18,662 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-11-25 16:47:18,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-25 16:47:18,662 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2022-11-25 16:47:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 16:47:18,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:18,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:18,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:18,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:18,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:18,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:18,876 INFO L85 PathProgramCache]: Analyzing trace with hash 219295069, now seen corresponding path program 1 times [2022-11-25 16:47:18,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:18,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546033249] [2022-11-25 16:47:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:18,877 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 [2022-11-25 16:47:18,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:18,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:18,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:18,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:47:18,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:19,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:19,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:19,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546033249] [2022-11-25 16:47:19,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546033249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:19,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:19,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:47:19,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344385986] [2022-11-25 16:47:19,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:19,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:47:19,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:19,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:47:19,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:47:19,089 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 6 states, 5 states have (on average 2.2) 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) [2022-11-25 16:47:19,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:19,207 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2022-11-25 16:47:19,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:47:19,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) 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 13 [2022-11-25 16:47:19,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:19,210 INFO L225 Difference]: With dead ends: 63 [2022-11-25 16:47:19,210 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 16:47:19,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:47:19,212 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 49 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:19,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 115 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:47:19,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 16:47:19,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2022-11-25 16:47:19,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 52 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2022-11-25 16:47:19,229 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 13 [2022-11-25 16:47:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:19,230 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2022-11-25 16:47:19,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) 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) [2022-11-25 16:47:19,230 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2022-11-25 16:47:19,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 16:47:19,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:19,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:19,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-25 16:47:19,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:19,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:19,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:19,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1588159394, now seen corresponding path program 1 times [2022-11-25 16:47:19,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:19,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598648049] [2022-11-25 16:47:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:19,447 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 [2022-11-25 16:47:19,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:19,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:19,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:19,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:47:19,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:19,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:19,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:19,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:19,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598648049] [2022-11-25 16:47:19,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598648049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:19,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:19,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:47:19,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901869399] [2022-11-25 16:47:19,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:19,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:47:19,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:19,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:47:19,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:19,574 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 5 states, 5 states have (on average 2.2) 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) [2022-11-25 16:47:19,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:19,607 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-11-25 16:47:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:47:19,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) 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 13 [2022-11-25 16:47:19,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:19,612 INFO L225 Difference]: With dead ends: 45 [2022-11-25 16:47:19,612 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 16:47:19,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:19,615 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 8 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:19,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 125 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:47:19,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 16:47:19,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-11-25 16:47:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 38 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-11-25 16:47:19,631 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 13 [2022-11-25 16:47:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:19,631 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-25 16:47:19,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) 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) [2022-11-25 16:47:19,632 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-11-25 16:47:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 16:47:19,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:19,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:19,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:19,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:19,862 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:19,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:19,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1791787383, now seen corresponding path program 1 times [2022-11-25 16:47:19,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:19,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754100355] [2022-11-25 16:47:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:19,872 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 [2022-11-25 16:47:19,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:19,895 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:19,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:20,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:47:20,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:20,046 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 [2022-11-25 16:47:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:20,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:20,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:20,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754100355] [2022-11-25 16:47:20,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754100355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:20,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:20,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:47:20,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893826559] [2022-11-25 16:47:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:20,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:47:20,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:20,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:47:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:20,095 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 5 states, 4 states have (on average 3.0) 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) [2022-11-25 16:47:20,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:20,178 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-25 16:47:20,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:47:20,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) 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 14 [2022-11-25 16:47:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:20,179 INFO L225 Difference]: With dead ends: 45 [2022-11-25 16:47:20,180 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 16:47:20,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:20,181 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 16 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:20,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 95 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:47:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 16:47:20,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2022-11-25 16:47:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 37 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:20,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2022-11-25 16:47:20,185 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 14 [2022-11-25 16:47:20,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:20,185 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2022-11-25 16:47:20,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) 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) [2022-11-25 16:47:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2022-11-25 16:47:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 16:47:20,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:20,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:20,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:20,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:20,391 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:20,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1791739619, now seen corresponding path program 1 times [2022-11-25 16:47:20,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:20,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902873788] [2022-11-25 16:47:20,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:20,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:20,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:20,394 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:20,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:20,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-25 16:47:20,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:20,582 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_12 (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_12) |c_#length|)))) is different from true [2022-11-25 16:47:20,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:47:20,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 16:47:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:20,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:20,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:20,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902873788] [2022-11-25 16:47:20,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902873788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:20,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:20,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:47:20,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060987488] [2022-11-25 16:47:20,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:20,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:47:20,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:20,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:47:20,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2022-11-25 16:47:20,749 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-11-25 16:47:20,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:20,924 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-11-25 16:47:20,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:47:20,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 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 14 [2022-11-25 16:47:20,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:20,925 INFO L225 Difference]: With dead ends: 42 [2022-11-25 16:47:20,925 INFO L226 Difference]: Without dead ends: 42 [2022-11-25 16:47:20,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=51, Unknown=1, NotChecked=14, Total=90 [2022-11-25 16:47:20,926 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 71 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:20,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 53 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 38 Unchecked, 0.1s Time] [2022-11-25 16:47:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-25 16:47:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2022-11-25 16:47:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:47:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-11-25 16:47:20,930 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 14 [2022-11-25 16:47:20,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:20,930 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-11-25 16:47:20,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-11-25 16:47:20,930 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-11-25 16:47:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 16:47:20,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:20,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:20,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:21,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:21,139 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:21,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2021592266, now seen corresponding path program 1 times [2022-11-25 16:47:21,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:21,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934287869] [2022-11-25 16:47:21,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:21,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:21,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:21,141 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:21,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:21,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:47:21,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:21,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:21,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:21,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934287869] [2022-11-25 16:47:21,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934287869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:21,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:21,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:47:21,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884563038] [2022-11-25 16:47:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:21,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:47:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:47:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:47:21,250 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 4 states, 3 states have (on average 4.0) 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) [2022-11-25 16:47:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:21,307 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-25 16:47:21,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:47:21,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) 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 14 [2022-11-25 16:47:21,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:21,308 INFO L225 Difference]: With dead ends: 41 [2022-11-25 16:47:21,308 INFO L226 Difference]: Without dead ends: 31 [2022-11-25 16:47:21,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:47:21,309 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:21,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 73 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:47:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-25 16:47:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-25 16:47:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 28 states have internal predecessors, (32), 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) [2022-11-25 16:47:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-11-25 16:47:21,311 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 14 [2022-11-25 16:47:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:21,312 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-11-25 16:47:21,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) 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) [2022-11-25 16:47:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-11-25 16:47:21,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 16:47:21,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:21,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:21,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:21,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:21,534 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:21,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1284300541, now seen corresponding path program 1 times [2022-11-25 16:47:21,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:21,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569648764] [2022-11-25 16:47:21,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:21,535 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 [2022-11-25 16:47:21,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:21,543 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:21,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:21,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:47:21,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:21,738 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-25 16:47:21,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-25 16:47:21,872 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 [2022-11-25 16:47:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:21,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:21,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:21,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569648764] [2022-11-25 16:47:21,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569648764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:21,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:21,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:47:21,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566604529] [2022-11-25 16:47:21,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:21,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:47:21,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:21,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:47:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:47:21,892 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:47:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:22,054 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-11-25 16:47:22,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:47:22,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-25 16:47:22,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:22,055 INFO L225 Difference]: With dead ends: 30 [2022-11-25 16:47:22,055 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 16:47:22,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:47:22,056 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:22,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 58 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:47:22,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 16:47:22,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 16:47:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 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) [2022-11-25 16:47:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-25 16:47:22,060 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 17 [2022-11-25 16:47:22,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:22,060 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-25 16:47:22,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:47:22,060 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-25 16:47:22,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 16:47:22,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:22,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:22,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:22,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:22,271 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:22,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:22,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1284300540, now seen corresponding path program 1 times [2022-11-25 16:47:22,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:22,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187918406] [2022-11-25 16:47:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:22,272 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 [2022-11-25 16:47:22,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:22,273 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:22,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:22,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:47:22,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:47:24,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 16:47:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:24,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:24,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:24,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187918406] [2022-11-25 16:47:24,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187918406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:24,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:24,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:47:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285495701] [2022-11-25 16:47:24,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:24,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:47:24,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:24,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:47:24,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=18, Unknown=2, NotChecked=0, Total=30 [2022-11-25 16:47:24,642 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:47:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:24,793 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-25 16:47:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:47:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-25 16:47:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:24,795 INFO L225 Difference]: With dead ends: 29 [2022-11-25 16:47:24,795 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 16:47:24,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=20, Invalid=34, Unknown=2, NotChecked=0, Total=56 [2022-11-25 16:47:24,796 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 34 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:24,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 60 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:47:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 16:47:24,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-11-25 16:47:24,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2022-11-25 16:47:24,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-25 16:47:24,798 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 17 [2022-11-25 16:47:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:24,798 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-25 16:47:24,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:47:24,799 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-25 16:47:24,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 16:47:24,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:24,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:24,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:25,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:25,007 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:25,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:25,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1557205148, now seen corresponding path program 1 times [2022-11-25 16:47:25,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:25,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459008005] [2022-11-25 16:47:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:25,008 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 [2022-11-25 16:47:25,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:25,010 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:25,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:25,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:47:25,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:25,247 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_probe1_6_~p~0#1.base| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_probe1_6_~p~0#1.base|) (_ bv0 1)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_probe1_6_~p~0#1.base| (_ bv0 1))))) is different from true [2022-11-25 16:47:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:25,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:25,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:25,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459008005] [2022-11-25 16:47:25,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459008005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:25,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:25,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:47:25,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845577817] [2022-11-25 16:47:25,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:25,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:47:25,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:47:25,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=32, Unknown=1, NotChecked=10, Total=56 [2022-11-25 16:47:25,281 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-25 16:47:25,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:25,443 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-25 16:47:25,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:47:25,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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 19 [2022-11-25 16:47:25,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:25,444 INFO L225 Difference]: With dead ends: 31 [2022-11-25 16:47:25,444 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 16:47:25,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=42, Unknown=1, NotChecked=12, Total=72 [2022-11-25 16:47:25,445 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 25 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:25,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 78 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2022-11-25 16:47:25,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 16:47:25,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 16:47:25,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-11-25 16:47:25,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-11-25 16:47:25,448 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2022-11-25 16:47:25,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:25,448 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-11-25 16:47:25,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-25 16:47:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-11-25 16:47:25,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 16:47:25,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:25,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:25,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:25,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:25,658 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:25,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:25,659 INFO L85 PathProgramCache]: Analyzing trace with hash -261845752, now seen corresponding path program 1 times [2022-11-25 16:47:25,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:25,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415760989] [2022-11-25 16:47:25,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:25,659 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 [2022-11-25 16:47:25,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:25,660 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:25,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 16:47:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:25,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:47:25,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:47:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:25,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:47:25,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:47:25,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415760989] [2022-11-25 16:47:25,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415760989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:25,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:25,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:47:25,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486293834] [2022-11-25 16:47:25,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:25,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:47:25,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:47:25,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:47:25,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:47:25,753 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:47:25,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:25,770 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-11-25 16:47:25,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:47:25,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-25 16:47:25,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:25,772 INFO L225 Difference]: With dead ends: 22 [2022-11-25 16:47:25,772 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 16:47:25,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:25,774 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:25,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:47:25,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 16:47:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 16:47:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 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) [2022-11-25 16:47:25,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2022-11-25 16:47:25,779 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 20 [2022-11-25 16:47:25,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:25,779 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2022-11-25 16:47:25,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:47:25,779 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2022-11-25 16:47:25,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 16:47:25,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:25,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:25,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 16:47:25,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:25,987 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 5 more)] === [2022-11-25 16:47:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:25,987 INFO L85 PathProgramCache]: Analyzing trace with hash 468899183, now seen corresponding path program 1 times [2022-11-25 16:47:25,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:47:25,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766682195] [2022-11-25 16:47:25,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:25,988 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 [2022-11-25 16:47:25,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:47:25,989 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 16:47:25,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 16:47:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:47:26,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:47:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:47:26,146 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 16:47:26,147 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:47:26,148 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-25 16:47:26,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-25 16:47:26,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-25 16:47:26,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (4 of 8 remaining) [2022-11-25 16:47:26,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (3 of 8 remaining) [2022-11-25 16:47:26,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (2 of 8 remaining) [2022-11-25 16:47:26,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2022-11-25 16:47:26,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 8 remaining) [2022-11-25 16:47:26,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 16:47:26,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:47:26,355 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:47:26,358 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:47:26,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:47:26 BoogieIcfgContainer [2022-11-25 16:47:26,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:47:26,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:47:26,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:47:26,384 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:47:26,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:16" (3/4) ... [2022-11-25 16:47:26,387 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:47:26,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:47:26,388 INFO L158 Benchmark]: Toolchain (without parser) took 11635.68ms. Allocated memory was 60.8MB in the beginning and 104.9MB in the end (delta: 44.0MB). Free memory was 28.9MB in the beginning and 50.2MB in the end (delta: -21.3MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-11-25 16:47:26,389 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:47:26,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 960.52ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 28.7MB in the beginning and 40.9MB in the end (delta: -12.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-11-25 16:47:26,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.58ms. Allocated memory is still 86.0MB. Free memory was 40.9MB in the beginning and 63.5MB in the end (delta: -22.6MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-11-25 16:47:26,390 INFO L158 Benchmark]: Boogie Preprocessor took 59.11ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 62.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:47:26,390 INFO L158 Benchmark]: RCFGBuilder took 461.11ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 48.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 16:47:26,390 INFO L158 Benchmark]: TraceAbstraction took 10053.50ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.4MB in the beginning and 51.3MB in the end (delta: -3.8MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-11-25 16:47:26,391 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 104.9MB. Free memory was 51.2MB in the beginning and 50.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:47:26,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 960.52ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 28.7MB in the beginning and 40.9MB in the end (delta: -12.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.58ms. Allocated memory is still 86.0MB. Free memory was 40.9MB in the beginning and 63.5MB in the end (delta: -22.6MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.11ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 62.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 461.11ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 48.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10053.50ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.4MB in the beginning and 51.3MB in the end (delta: -3.8MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 104.9MB. Free memory was 51.2MB in the beginning and 50.2MB in the end (delta: 1.0MB). 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 - UnprovableResult [Line: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L782] struct A a6; VAL [a6={2:0}, ldv_global_msg_list={1:0}] [L791] CALL entry_point() [L784] CALL, EXPR probe1_6(&a6) [L764] int ret = - -3; VAL [a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={2:0}, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(int))={6:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) [L768] CALL, EXPR f6() [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() [L768] ret = f6() [L769] COND FALSE !(ret<0) [L771] CALL, EXPR g6() [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, p={6:0}, ret=0] [L774] a->p = p VAL [a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, p={6:0}, ret=0] [L775] return 0; VAL [\result=0, a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, p={6:0}, ret=0] [L784] RET, EXPR probe1_6(&a6) [L784] int ret = probe1_6(&a6); [L785] COND TRUE ret==0 [L786] FCALL disconnect_2_6(&a6) [L788] a6.p = 0 VAL [a6={2:0}, ldv_global_msg_list={1:0}, ret=0] [L791] RET entry_point() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 348 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 66 IncrementalHoareTripleChecker+Unchecked, 723 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 376 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=4, InterpolantAutomatonStates: 70, 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, 13 MinimizatonAttempts, 59 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 176 ConstructedInterpolants, 20 QuantifiedInterpolants, 1302 SizeOfPredicates, 9 NumberOfNonLiveVariables, 738 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 16:47:26,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36c90af-30ac-4f71-a504-30bde7206c0d/bin/uautomizer-ZsLfNo2U6R/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: UNKNOWN: Overapproximated counterexample