./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc --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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- 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-5e519f3 [2022-11-02 20:48:07,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:48:07,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:48:07,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:48:07,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:48:07,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:48:07,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:48:07,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:48:07,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:48:07,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:48:07,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:48:07,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:48:07,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:48:07,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:48:07,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:48:07,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:48:07,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:48:07,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:48:07,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:48:07,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:48:07,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:48:07,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:48:07,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:48:07,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:48:07,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:48:07,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:48:07,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:48:07,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:48:07,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:48:07,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:48:07,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:48:07,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:48:07,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:48:07,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:48:07,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:48:07,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:48:07,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:48:07,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:48:07,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:48:07,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:48:07,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:48:07,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-02 20:48:07,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:48:07,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:48:07,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:48:07,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:48:07,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:48:07,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:48:07,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:48:07,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:48:07,840 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:48:07,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:48:07,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:48:07,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:48:07,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:48:07,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:48:07,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:48:07,842 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 20:48:07,842 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 20:48:07,842 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 20:48:07,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:48:07,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:48:07,843 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:48:07,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:48:07,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:48:07,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:48:07,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:48:07,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:48:07,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:48:07,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:48:07,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:48:07,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:48:07,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2022-11-02 20:48:08,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:48:08,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:48:08,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:48:08,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:48:08,167 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:48:08,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-11-02 20:48:08,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/0641453c8/7536cc80a6fc48168f0e77cd77c89cc5/FLAG45c5aa0a0 [2022-11-02 20:48:08,935 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:48:08,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-11-02 20:48:08,959 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/0641453c8/7536cc80a6fc48168f0e77cd77c89cc5/FLAG45c5aa0a0 [2022-11-02 20:48:09,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/0641453c8/7536cc80a6fc48168f0e77cd77c89cc5 [2022-11-02 20:48:09,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:48:09,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:48:09,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:09,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:48:09,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:48:09,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:09" (1/1) ... [2022-11-02 20:48:09,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c12143d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:09, skipping insertion in model container [2022-11-02 20:48:09,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:09" (1/1) ... [2022-11-02 20:48:09,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:48:09,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:48:09,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2022-11-02 20:48:09,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:09,856 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) [2022-11-02 20:48:09,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f7e9c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:09, skipping insertion in model container [2022-11-02 20:48:09,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:09,857 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-02 20:48:09,859 INFO L158 Benchmark]: Toolchain (without parser) took 681.38ms. Allocated memory is still 132.1MB. Free memory was 92.5MB in the beginning and 98.8MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:48:09,860 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 56.7MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:48:09,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.72ms. Allocated memory is still 132.1MB. Free memory was 92.5MB in the beginning and 98.8MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:48:09,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 56.7MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 678.72ms. Allocated memory is still 132.1MB. Free memory was 92.5MB in the beginning and 98.8MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc --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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- 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-5e519f3 [2022-11-02 20:48:12,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:48:12,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:48:12,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:48:12,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:48:12,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:48:12,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:48:12,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:48:12,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:48:12,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:48:12,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:48:12,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:48:12,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:48:12,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:48:12,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:48:12,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:48:12,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:48:12,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:48:12,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:48:12,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:48:12,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:48:12,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:48:12,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:48:12,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:48:12,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:48:12,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:48:12,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:48:12,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:48:12,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:48:12,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:48:12,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:48:12,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:48:12,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:48:12,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:48:12,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:48:12,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:48:12,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:48:12,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:48:12,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:48:12,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:48:12,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:48:12,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-02 20:48:12,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:48:12,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:48:12,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:48:12,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:48:12,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:48:12,107 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:48:12,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:48:12,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:48:12,108 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:48:12,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:48:12,109 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:48:12,109 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:48:12,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:48:12,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:48:12,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:48:12,110 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 20:48:12,110 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 20:48:12,110 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 20:48:12,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:48:12,111 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:48:12,111 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:48:12,111 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:48:12,112 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:48:12,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:48:12,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:48:12,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:48:12,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:48:12,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:48:12,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:48:12,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:48:12,114 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:48:12,114 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:48:12,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:48:12,114 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2022-11-02 20:48:12,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:48:12,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:48:12,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:48:12,565 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:48:12,566 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:48:12,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-11-02 20:48:12,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/1f2f6c7ee/0562b9f1c3a64130b91a33a9ea3a47aa/FLAG29fd7428b [2022-11-02 20:48:13,287 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:48:13,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-11-02 20:48:13,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/1f2f6c7ee/0562b9f1c3a64130b91a33a9ea3a47aa/FLAG29fd7428b [2022-11-02 20:48:13,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/data/1f2f6c7ee/0562b9f1c3a64130b91a33a9ea3a47aa [2022-11-02 20:48:13,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:48:13,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:48:13,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:13,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:48:13,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:48:13,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:13" (1/1) ... [2022-11-02 20:48:13,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6066f4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:13, skipping insertion in model container [2022-11-02 20:48:13,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:48:13" (1/1) ... [2022-11-02 20:48:13,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:48:13,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:48:14,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2022-11-02 20:48:14,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:14,338 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-02 20:48:14,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:48:14,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2022-11-02 20:48:14,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:14,416 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:48:14,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2022-11-02 20:48:14,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:48:14,533 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:48:14,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14 WrapperNode [2022-11-02 20:48:14,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:48:14,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:48:14,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:48:14,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:48:14,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,608 INFO L138 Inliner]: procedures = 180, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 628 [2022-11-02 20:48:14,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:48:14,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:48:14,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:48:14,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:48:14,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:48:14,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:48:14,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:48:14,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:48:14,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (1/1) ... [2022-11-02 20:48:14,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:48:14,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:48:14,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:48:14,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:48:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-02 20:48:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-02 20:48:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 20:48:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 20:48:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:48:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:48:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:48:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:48:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:48:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:48:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:48:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:48:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-02 20:48:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:48:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:48:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:48:15,036 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:48:15,045 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:48:15,049 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 20:48:18,088 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:48:18,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:48:18,099 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-02 20:48:18,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:18 BoogieIcfgContainer [2022-11-02 20:48:18,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:48:18,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:48:18,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:48:18,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:48:18,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:48:13" (1/3) ... [2022-11-02 20:48:18,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616ff8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:48:18, skipping insertion in model container [2022-11-02 20:48:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:48:14" (2/3) ... [2022-11-02 20:48:18,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616ff8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:48:18, skipping insertion in model container [2022-11-02 20:48:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:48:18" (3/3) ... [2022-11-02 20:48:18,114 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2022-11-02 20:48:18,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:48:18,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 330 error locations. [2022-11-02 20:48:18,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:48:18,214 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e63a523, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:48:18,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 330 error locations. [2022-11-02 20:48:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 668 states, 325 states have (on average 2.230769230769231) internal successors, (725), 662 states have internal predecessors, (725), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:18,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:48:18,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:18,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:48:18,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:18,231 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2022-11-02 20:48:18,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:18,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778642519] [2022-11-02 20:48:18,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:18,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:18,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:18,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:18,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:48:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:18,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:48:18,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:18,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:18,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:18,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778642519] [2022-11-02 20:48:18,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778642519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:18,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:18,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:18,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087873552] [2022-11-02 20:48:18,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:18,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:48:18,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:18,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:48:18,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:48:18,439 INFO L87 Difference]: Start difference. First operand has 668 states, 325 states have (on average 2.230769230769231) internal successors, (725), 662 states have internal predecessors, (725), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:18,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:18,500 INFO L93 Difference]: Finished difference Result 659 states and 706 transitions. [2022-11-02 20:48:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:48:18,502 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:48:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:18,517 INFO L225 Difference]: With dead ends: 659 [2022-11-02 20:48:18,517 INFO L226 Difference]: Without dead ends: 657 [2022-11-02 20:48:18,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:48:18,522 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:18,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:48:18,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-11-02 20:48:18,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2022-11-02 20:48:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 320 states have (on average 2.11875) internal successors, (678), 651 states have internal predecessors, (678), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 704 transitions. [2022-11-02 20:48:18,606 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 704 transitions. Word has length 5 [2022-11-02 20:48:18,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:18,607 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 704 transitions. [2022-11-02 20:48:18,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:18,607 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 704 transitions. [2022-11-02 20:48:18,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:48:18,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:18,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:48:18,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:18,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:18,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:18,816 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2022-11-02 20:48:18,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:18,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375865953] [2022-11-02 20:48:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:18,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:18,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:18,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:18,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:48:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:18,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:48:18,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:18,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 20:48:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:18,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:18,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:18,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375865953] [2022-11-02 20:48:18,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375865953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:18,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:18,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:18,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124971147] [2022-11-02 20:48:18,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:18,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:18,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:18,981 INFO L87 Difference]: Start difference. First operand 657 states and 704 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:20,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:20,412 INFO L93 Difference]: Finished difference Result 615 states and 663 transitions. [2022-11-02 20:48:20,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:20,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:48:20,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:20,416 INFO L225 Difference]: With dead ends: 615 [2022-11-02 20:48:20,416 INFO L226 Difference]: Without dead ends: 615 [2022-11-02 20:48:20,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:20,418 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 596 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:20,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 351 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:48:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-11-02 20:48:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 608. [2022-11-02 20:48:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 320 states have (on average 1.965625) internal successors, (629), 602 states have internal predecessors, (629), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:20,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 655 transitions. [2022-11-02 20:48:20,447 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 655 transitions. Word has length 5 [2022-11-02 20:48:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:20,448 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 655 transitions. [2022-11-02 20:48:20,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 655 transitions. [2022-11-02 20:48:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:48:20,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:20,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:48:20,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:20,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:20,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:20,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2022-11-02 20:48:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:20,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483951004] [2022-11-02 20:48:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:20,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:20,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:20,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:20,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:48:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:20,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:48:20,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:20,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:48:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:20,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:20,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:20,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483951004] [2022-11-02 20:48:20,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483951004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:20,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:20,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:48:20,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898759665] [2022-11-02 20:48:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:20,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:20,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:20,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:20,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:20,798 INFO L87 Difference]: Start difference. First operand 608 states and 655 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:22,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:22,454 INFO L93 Difference]: Finished difference Result 675 states and 726 transitions. [2022-11-02 20:48:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:22,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:48:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:22,458 INFO L225 Difference]: With dead ends: 675 [2022-11-02 20:48:22,458 INFO L226 Difference]: Without dead ends: 675 [2022-11-02 20:48:22,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:22,459 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 254 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:22,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 752 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 20:48:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-02 20:48:22,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 630. [2022-11-02 20:48:22,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 352 states have (on average 1.9460227272727273) internal successors, (685), 624 states have internal predecessors, (685), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 711 transitions. [2022-11-02 20:48:22,483 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 711 transitions. Word has length 5 [2022-11-02 20:48:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:22,484 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 711 transitions. [2022-11-02 20:48:22,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 711 transitions. [2022-11-02 20:48:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:48:22,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:22,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:48:22,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:22,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:22,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:22,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:22,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1156735106, now seen corresponding path program 1 times [2022-11-02 20:48:22,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:22,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928471916] [2022-11-02 20:48:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:22,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:22,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:22,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:22,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:48:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:22,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:48:22,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:22,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:22,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:22,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928471916] [2022-11-02 20:48:22,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928471916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:22,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:22,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:48:22,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909331796] [2022-11-02 20:48:22,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:22,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:22,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:22,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:22,791 INFO L87 Difference]: Start difference. First operand 630 states and 711 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:22,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:22,891 INFO L93 Difference]: Finished difference Result 1211 states and 1353 transitions. [2022-11-02 20:48:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:22,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-02 20:48:22,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:22,900 INFO L225 Difference]: With dead ends: 1211 [2022-11-02 20:48:22,900 INFO L226 Difference]: Without dead ends: 1211 [2022-11-02 20:48:22,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:22,901 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 569 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:22,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1505 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:48:22,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2022-11-02 20:48:22,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 631. [2022-11-02 20:48:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 353 states have (on average 1.9433427762039661) internal successors, (686), 625 states have internal predecessors, (686), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 712 transitions. [2022-11-02 20:48:22,923 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 712 transitions. Word has length 6 [2022-11-02 20:48:22,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:22,924 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 712 transitions. [2022-11-02 20:48:22,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 712 transitions. [2022-11-02 20:48:22,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:48:22,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:22,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:22,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:23,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:23,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2022-11-02 20:48:23,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:23,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805323400] [2022-11-02 20:48:23,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:23,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:23,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:23,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:23,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:48:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:23,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:48:23,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:23,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:23,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:23,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805323400] [2022-11-02 20:48:23,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805323400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:23,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:23,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:48:23,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144928941] [2022-11-02 20:48:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:23,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:23,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:23,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:23,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:23,323 INFO L87 Difference]: Start difference. First operand 631 states and 712 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:23,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:23,363 INFO L93 Difference]: Finished difference Result 595 states and 675 transitions. [2022-11-02 20:48:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:23,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-02 20:48:23,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:23,368 INFO L225 Difference]: With dead ends: 595 [2022-11-02 20:48:23,368 INFO L226 Difference]: Without dead ends: 595 [2022-11-02 20:48:23,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:23,371 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 563 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:23,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 627 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:48:23,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-02 20:48:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 589. [2022-11-02 20:48:23,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 335 states have (on average 1.9194029850746268) internal successors, (643), 583 states have internal predecessors, (643), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:23,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 669 transitions. [2022-11-02 20:48:23,394 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 669 transitions. Word has length 11 [2022-11-02 20:48:23,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:23,395 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 669 transitions. [2022-11-02 20:48:23,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:23,395 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 669 transitions. [2022-11-02 20:48:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 20:48:23,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:23,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:23,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:23,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:23,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:23,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2022-11-02 20:48:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:23,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782956077] [2022-11-02 20:48:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:23,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:23,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:23,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:23,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:48:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:23,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:48:23,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:23,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:23,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:23,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782956077] [2022-11-02 20:48:23,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782956077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:23,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:23,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:48:23,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978363436] [2022-11-02 20:48:23,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:23,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:48:23,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:23,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:48:23,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:48:23,787 INFO L87 Difference]: Start difference. First operand 589 states and 669 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:23,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:23,867 INFO L93 Difference]: Finished difference Result 574 states and 647 transitions. [2022-11-02 20:48:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:48:23,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-02 20:48:23,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:23,871 INFO L225 Difference]: With dead ends: 574 [2022-11-02 20:48:23,871 INFO L226 Difference]: Without dead ends: 574 [2022-11-02 20:48:23,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:48:23,874 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 534 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:23,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1127 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:48:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-02 20:48:23,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 567. [2022-11-02 20:48:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 327 states have (on average 1.8776758409785932) internal successors, (614), 561 states have internal predecessors, (614), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 640 transitions. [2022-11-02 20:48:23,893 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 640 transitions. Word has length 13 [2022-11-02 20:48:23,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:23,893 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 640 transitions. [2022-11-02 20:48:23,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 640 transitions. [2022-11-02 20:48:23,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 20:48:23,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:23,895 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, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:23,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:24,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:24,109 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:24,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:24,109 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2022-11-02 20:48:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:24,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346208746] [2022-11-02 20:48:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:24,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:24,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:24,111 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:24,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:48:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:24,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:48:24,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:24,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 20:48:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:24,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:24,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:24,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346208746] [2022-11-02 20:48:24,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346208746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:24,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:24,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:48:24,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849133315] [2022-11-02 20:48:24,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:24,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:48:24,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:24,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:48:24,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:48:24,351 INFO L87 Difference]: Start difference. First operand 567 states and 640 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:25,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:25,885 INFO L93 Difference]: Finished difference Result 611 states and 705 transitions. [2022-11-02 20:48:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:48:25,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 20:48:25,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:25,888 INFO L225 Difference]: With dead ends: 611 [2022-11-02 20:48:25,888 INFO L226 Difference]: Without dead ends: 611 [2022-11-02 20:48:25,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:48:25,889 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 960 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:25,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 385 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 20:48:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-11-02 20:48:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 563. [2022-11-02 20:48:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 327 states have (on average 1.8654434250764527) internal successors, (610), 557 states have internal predecessors, (610), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:25,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 636 transitions. [2022-11-02 20:48:25,903 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 636 transitions. Word has length 27 [2022-11-02 20:48:25,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:25,903 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 636 transitions. [2022-11-02 20:48:25,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 636 transitions. [2022-11-02 20:48:25,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 20:48:25,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:25,904 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, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:25,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:26,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:26,128 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:26,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:26,129 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2022-11-02 20:48:26,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:26,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586651286] [2022-11-02 20:48:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:26,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:26,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:26,130 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:26,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:48:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:26,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:48:26,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:26,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:48:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:26,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:26,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:26,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586651286] [2022-11-02 20:48:26,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586651286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:26,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:26,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:48:26,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742674887] [2022-11-02 20:48:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:26,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:48:26,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:26,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:48:26,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:48:26,546 INFO L87 Difference]: Start difference. First operand 563 states and 636 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:28,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:28,755 INFO L93 Difference]: Finished difference Result 645 states and 708 transitions. [2022-11-02 20:48:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:48:28,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 20:48:28,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:28,760 INFO L225 Difference]: With dead ends: 645 [2022-11-02 20:48:28,760 INFO L226 Difference]: Without dead ends: 645 [2022-11-02 20:48:28,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:48:28,761 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 351 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:28,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 923 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 20:48:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-11-02 20:48:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 559. [2022-11-02 20:48:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 327 states have (on average 1.853211009174312) internal successors, (606), 553 states have internal predecessors, (606), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 632 transitions. [2022-11-02 20:48:28,779 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 632 transitions. Word has length 27 [2022-11-02 20:48:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:28,779 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 632 transitions. [2022-11-02 20:48:28,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 632 transitions. [2022-11-02 20:48:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-02 20:48:28,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:28,781 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:28,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:28,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:28,999 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:28,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:29,000 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2022-11-02 20:48:29,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:29,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542426689] [2022-11-02 20:48:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:29,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:29,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:29,002 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:29,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 20:48:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:29,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:48:29,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:29,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:29,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:29,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542426689] [2022-11-02 20:48:29,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542426689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:29,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:29,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:48:29,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400253295] [2022-11-02 20:48:29,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:29,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:48:29,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:29,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:48:29,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:48:29,289 INFO L87 Difference]: Start difference. First operand 559 states and 632 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:29,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:29,360 INFO L93 Difference]: Finished difference Result 559 states and 628 transitions. [2022-11-02 20:48:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:48:29,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-11-02 20:48:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:29,363 INFO L225 Difference]: With dead ends: 559 [2022-11-02 20:48:29,364 INFO L226 Difference]: Without dead ends: 559 [2022-11-02 20:48:29,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:48:29,365 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 510 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:29,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1105 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:48:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-02 20:48:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 553. [2022-11-02 20:48:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 321 states have (on average 1.8566978193146417) internal successors, (596), 547 states have internal predecessors, (596), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 622 transitions. [2022-11-02 20:48:29,381 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 622 transitions. Word has length 42 [2022-11-02 20:48:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:29,381 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 622 transitions. [2022-11-02 20:48:29,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 622 transitions. [2022-11-02 20:48:29,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 20:48:29,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:29,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:29,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:29,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:29,597 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:29,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:29,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2022-11-02 20:48:29,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:29,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974426507] [2022-11-02 20:48:29,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:29,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:29,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:29,601 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:29,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 20:48:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:29,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:48:29,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:30,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:30,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:30,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:30,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974426507] [2022-11-02 20:48:30,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974426507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:30,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:30,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:48:30,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902106441] [2022-11-02 20:48:30,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:30,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:48:30,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:48:30,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:30,140 INFO L87 Difference]: Start difference. First operand 553 states and 622 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:30,244 INFO L93 Difference]: Finished difference Result 599 states and 668 transitions. [2022-11-02 20:48:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:48:30,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-02 20:48:30,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:30,249 INFO L225 Difference]: With dead ends: 599 [2022-11-02 20:48:30,249 INFO L226 Difference]: Without dead ends: 599 [2022-11-02 20:48:30,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:48:30,251 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 67 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:30,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1012 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:48:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-02 20:48:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-11-02 20:48:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 367 states have (on average 1.7493188010899183) internal successors, (642), 593 states have internal predecessors, (642), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 668 transitions. [2022-11-02 20:48:30,269 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 668 transitions. Word has length 50 [2022-11-02 20:48:30,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:30,269 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 668 transitions. [2022-11-02 20:48:30,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:30,269 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 668 transitions. [2022-11-02 20:48:30,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 20:48:30,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:30,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:30,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:30,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:30,491 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:30,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:30,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2022-11-02 20:48:30,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:30,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303013525] [2022-11-02 20:48:30,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:30,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:30,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:30,495 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:30,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 20:48:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:30,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:48:30,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:30,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 20:48:30,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:48:31,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:48:31,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 20:48:31,458 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-02 20:48:31,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-02 20:48:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:31,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:31,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:31,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303013525] [2022-11-02 20:48:31,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303013525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:31,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:31,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:48:31,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755748260] [2022-11-02 20:48:31,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:31,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:48:31,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:31,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:48:31,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:48:31,485 INFO L87 Difference]: Start difference. First operand 599 states and 668 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:32,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:32,923 INFO L93 Difference]: Finished difference Result 568 states and 638 transitions. [2022-11-02 20:48:32,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:48:32,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-11-02 20:48:32,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:32,927 INFO L225 Difference]: With dead ends: 568 [2022-11-02 20:48:32,927 INFO L226 Difference]: Without dead ends: 568 [2022-11-02 20:48:32,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:48:32,928 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 827 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:32,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 260 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:48:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-11-02 20:48:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 529. [2022-11-02 20:48:32,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 335 states have (on average 1.6059701492537313) internal successors, (538), 523 states have internal predecessors, (538), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:32,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 564 transitions. [2022-11-02 20:48:32,953 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 564 transitions. Word has length 53 [2022-11-02 20:48:32,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:32,954 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 564 transitions. [2022-11-02 20:48:32,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:32,954 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 564 transitions. [2022-11-02 20:48:32,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 20:48:32,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:32,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:32,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:33,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:33,162 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:33,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2022-11-02 20:48:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:33,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016970543] [2022-11-02 20:48:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:33,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:33,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:33,165 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:33,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 20:48:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:33,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:48:33,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:33,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 20:48:33,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:48:33,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-02 20:48:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:33,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:33,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:33,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016970543] [2022-11-02 20:48:33,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016970543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:33,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:33,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:48:33,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883817144] [2022-11-02 20:48:33,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:33,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:48:33,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:33,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:48:33,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:48:33,505 INFO L87 Difference]: Start difference. First operand 529 states and 564 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:35,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:35,393 INFO L93 Difference]: Finished difference Result 528 states and 563 transitions. [2022-11-02 20:48:35,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:48:35,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-02 20:48:35,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:35,396 INFO L225 Difference]: With dead ends: 528 [2022-11-02 20:48:35,396 INFO L226 Difference]: Without dead ends: 528 [2022-11-02 20:48:35,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:48:35,397 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 4 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:35,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1325 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 20:48:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-02 20:48:35,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-11-02 20:48:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 335 states have (on average 1.6029850746268657) internal successors, (537), 522 states have internal predecessors, (537), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 563 transitions. [2022-11-02 20:48:35,408 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 563 transitions. Word has length 58 [2022-11-02 20:48:35,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:35,409 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 563 transitions. [2022-11-02 20:48:35,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 563 transitions. [2022-11-02 20:48:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 20:48:35,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:35,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:35,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:35,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:35,625 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:35,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2022-11-02 20:48:35,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:35,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932742369] [2022-11-02 20:48:35,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:35,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:35,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:35,629 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:35,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 20:48:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:35,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:48:35,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:35,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:48:35,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:48:35,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:48:35,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-02 20:48:36,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-02 20:48:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:36,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:36,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932742369] [2022-11-02 20:48:36,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932742369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:36,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:36,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:48:36,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381529650] [2022-11-02 20:48:36,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:36,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:48:36,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:36,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:48:36,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:48:36,022 INFO L87 Difference]: Start difference. First operand 528 states and 563 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:38,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:38,267 INFO L93 Difference]: Finished difference Result 527 states and 562 transitions. [2022-11-02 20:48:38,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:48:38,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-02 20:48:38,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:38,271 INFO L225 Difference]: With dead ends: 527 [2022-11-02 20:48:38,271 INFO L226 Difference]: Without dead ends: 527 [2022-11-02 20:48:38,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:48:38,272 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 2 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:38,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1335 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-02 20:48:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-11-02 20:48:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2022-11-02 20:48:38,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 334 states have (on average 1.6047904191616766) internal successors, (536), 521 states have internal predecessors, (536), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-02 20:48:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 562 transitions. [2022-11-02 20:48:38,283 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 562 transitions. Word has length 58 [2022-11-02 20:48:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:38,284 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 562 transitions. [2022-11-02 20:48:38,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:48:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 562 transitions. [2022-11-02 20:48:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 20:48:38,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:38,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:38,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:38,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:38,500 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:38,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -624458498, now seen corresponding path program 1 times [2022-11-02 20:48:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:38,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120623755] [2022-11-02 20:48:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:38,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:38,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:38,502 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:38,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 20:48:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:38,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:48:38,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:38,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:48:38,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:38,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120623755] [2022-11-02 20:48:38,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120623755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:48:38,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:48:38,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:48:38,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457184607] [2022-11-02 20:48:38,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:48:38,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:48:38,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:38,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:48:38,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:48:38,797 INFO L87 Difference]: Start difference. First operand 527 states and 562 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-11-02 20:48:38,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:38,850 INFO L93 Difference]: Finished difference Result 530 states and 566 transitions. [2022-11-02 20:48:38,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:48:38,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-11-02 20:48:38,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:38,854 INFO L225 Difference]: With dead ends: 530 [2022-11-02 20:48:38,854 INFO L226 Difference]: Without dead ends: 530 [2022-11-02 20:48:38,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:48:38,855 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 2 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:38,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1531 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:48:38,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-11-02 20:48:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2022-11-02 20:48:38,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 336 states have (on average 1.6041666666666667) internal successors, (539), 524 states have internal predecessors, (539), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-02 20:48:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 566 transitions. [2022-11-02 20:48:38,867 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 566 transitions. Word has length 66 [2022-11-02 20:48:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:38,868 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 566 transitions. [2022-11-02 20:48:38,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-11-02 20:48:38,868 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 566 transitions. [2022-11-02 20:48:38,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 20:48:38,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:38,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:38,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-02 20:48:39,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:39,084 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash -594716233, now seen corresponding path program 1 times [2022-11-02 20:48:39,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:39,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862441926] [2022-11-02 20:48:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:39,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:39,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:39,087 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:39,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 20:48:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:39,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:48:39,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:39,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:48:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:39,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:39,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862441926] [2022-11-02 20:48:39,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862441926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:48:39,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:48:39,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-02 20:48:39,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730773599] [2022-11-02 20:48:39,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:48:39,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:48:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:48:39,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:48:39,561 INFO L87 Difference]: Start difference. First operand 530 states and 566 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:48:39,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:39,761 INFO L93 Difference]: Finished difference Result 542 states and 583 transitions. [2022-11-02 20:48:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:48:39,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2022-11-02 20:48:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:39,765 INFO L225 Difference]: With dead ends: 542 [2022-11-02 20:48:39,765 INFO L226 Difference]: Without dead ends: 542 [2022-11-02 20:48:39,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:48:39,766 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 23 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:39,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1535 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:48:39,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-11-02 20:48:39,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 540. [2022-11-02 20:48:39,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 345 states have (on average 1.6057971014492753) internal successors, (554), 533 states have internal predecessors, (554), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-02 20:48:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 581 transitions. [2022-11-02 20:48:39,778 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 581 transitions. Word has length 67 [2022-11-02 20:48:39,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:39,778 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 581 transitions. [2022-11-02 20:48:39,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:48:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 581 transitions. [2022-11-02 20:48:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-02 20:48:39,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:39,780 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:39,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:39,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:39,996 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:39,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash 133393214, now seen corresponding path program 2 times [2022-11-02 20:48:39,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:39,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49674508] [2022-11-02 20:48:39,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:48:39,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:39,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:39,998 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:40,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-02 20:48:40,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:48:40,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:48:40,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:48:40,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:40,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:48:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:40,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:40,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49674508] [2022-11-02 20:48:40,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49674508] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:48:40,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:48:40,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-02 20:48:40,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084509824] [2022-11-02 20:48:40,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:48:40,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:48:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:48:40,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:48:40,737 INFO L87 Difference]: Start difference. First operand 540 states and 581 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:48:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:41,505 INFO L93 Difference]: Finished difference Result 561 states and 609 transitions. [2022-11-02 20:48:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-02 20:48:41,506 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2022-11-02 20:48:41,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:41,508 INFO L225 Difference]: With dead ends: 561 [2022-11-02 20:48:41,508 INFO L226 Difference]: Without dead ends: 557 [2022-11-02 20:48:41,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2022-11-02 20:48:41,509 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 63 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:41,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3079 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:48:41,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-02 20:48:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 549. [2022-11-02 20:48:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 354 states have (on average 1.5988700564971752) internal successors, (566), 542 states have internal predecessors, (566), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-02 20:48:41,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 593 transitions. [2022-11-02 20:48:41,521 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 593 transitions. Word has length 70 [2022-11-02 20:48:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:41,521 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 593 transitions. [2022-11-02 20:48:41,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:48:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 593 transitions. [2022-11-02 20:48:41,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-02 20:48:41,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:41,523 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:41,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-11-02 20:48:41,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:41,740 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:41,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash 419670174, now seen corresponding path program 3 times [2022-11-02 20:48:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:41,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219897025] [2022-11-02 20:48:41,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:48:41,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:41,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:41,743 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:41,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-02 20:48:42,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-02 20:48:42,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:48:42,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:48:42,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:42,630 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:42,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:48:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:43,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:43,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219897025] [2022-11-02 20:48:43,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219897025] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:48:43,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:48:43,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-11-02 20:48:43,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036007841] [2022-11-02 20:48:43,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:48:43,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-02 20:48:43,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:43,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-02 20:48:43,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-11-02 20:48:43,635 INFO L87 Difference]: Start difference. First operand 549 states and 593 transitions. Second operand has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:48:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:48,205 INFO L93 Difference]: Finished difference Result 591 states and 655 transitions. [2022-11-02 20:48:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-02 20:48:48,206 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2022-11-02 20:48:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:48:48,208 INFO L225 Difference]: With dead ends: 591 [2022-11-02 20:48:48,208 INFO L226 Difference]: Without dead ends: 585 [2022-11-02 20:48:48,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2022-11-02 20:48:48,210 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 196 mSDsluCounter, 5688 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 6209 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:48:48,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 6209 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:48:48,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-11-02 20:48:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 567. [2022-11-02 20:48:48,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 372 states have (on average 1.5833333333333333) internal successors, (589), 560 states have internal predecessors, (589), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-02 20:48:48,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 616 transitions. [2022-11-02 20:48:48,225 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 616 transitions. Word has length 76 [2022-11-02 20:48:48,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:48:48,225 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 616 transitions. [2022-11-02 20:48:48,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:48:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 616 transitions. [2022-11-02 20:48:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-02 20:48:48,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:48:48,227 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:48:48,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:48:48,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:48:48,443 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:48:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1934068574, now seen corresponding path program 4 times [2022-11-02 20:48:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:48:48,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107286568] [2022-11-02 20:48:48,444 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:48:48,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:48:48,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:48:48,445 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:48:48,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-02 20:48:48,796 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:48:48,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:48:48,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:48:48,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:49,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:48:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:51,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:48:51,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107286568] [2022-11-02 20:48:51,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107286568] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:48:51,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:48:51,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2022-11-02 20:48:51,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074676029] [2022-11-02 20:48:51,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:48:51,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-02 20:48:51,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:48:51,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-02 20:48:51,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2022-11-02 20:48:51,644 INFO L87 Difference]: Start difference. First operand 567 states and 616 transitions. Second operand has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:49:07,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:07,304 INFO L93 Difference]: Finished difference Result 647 states and 728 transitions. [2022-11-02 20:49:07,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-11-02 20:49:07,305 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2022-11-02 20:49:07,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:07,308 INFO L225 Difference]: With dead ends: 647 [2022-11-02 20:49:07,308 INFO L226 Difference]: Without dead ends: 643 [2022-11-02 20:49:07,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1383 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2022-11-02 20:49:07,311 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 393 mSDsluCounter, 13692 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 14225 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:07,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 14225 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-02 20:49:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-11-02 20:49:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 601. [2022-11-02 20:49:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 406 states have (on average 1.564039408866995) internal successors, (635), 594 states have internal predecessors, (635), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-02 20:49:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 662 transitions. [2022-11-02 20:49:07,326 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 662 transitions. Word has length 88 [2022-11-02 20:49:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:07,327 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 662 transitions. [2022-11-02 20:49:07,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:49:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 662 transitions. [2022-11-02 20:49:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-02 20:49:07,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:07,328 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:07,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:07,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:49:07,542 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:49:07,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1476884034, now seen corresponding path program 5 times [2022-11-02 20:49:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:49:07,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863956978] [2022-11-02 20:49:07,544 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:49:07,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:49:07,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:49:07,545 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:49:07,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-02 20:49:09,174 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2022-11-02 20:49:09,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:09,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-02 20:49:09,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:09,255 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-02 20:49:09,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2022-11-02 20:49:09,704 INFO L356 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2022-11-02 20:49:09,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2022-11-02 20:49:09,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:49:09,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-02 20:49:10,612 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_11 (_ BitVec 32))) (and (not (= v_arrayElimCell_11 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| v_arrayElimCell_11))) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)))) (exists ((v_ArrVal_1568 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1568) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:49:10,635 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_11 (_ BitVec 32))) (and (not (= v_arrayElimCell_11 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| v_arrayElimCell_11))) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)))) (exists ((v_ArrVal_1569 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1569)))) is different from true [2022-11-02 20:49:10,929 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_11 (_ BitVec 32))) (and (not (= v_arrayElimCell_11 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| v_arrayElimCell_11))) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)))) (exists ((v_ArrVal_1575 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1575)))) is different from true [2022-11-02 20:49:11,552 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_11 (_ BitVec 32))) (and (not (= v_arrayElimCell_11 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| v_arrayElimCell_11))) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)))) (exists ((v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1588)))) is different from true [2022-11-02 20:49:11,722 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_11 (_ BitVec 32))) (and (not (= v_arrayElimCell_11 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| v_arrayElimCell_11))) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)))) (exists ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1592) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:49:11,947 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_11 (_ BitVec 32))) (and (not (= v_arrayElimCell_11 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| v_arrayElimCell_11))) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)))) (exists ((v_ArrVal_1597 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1597)))) is different from true [2022-11-02 20:49:12,217 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_11 (_ BitVec 32))) (and (not (= v_arrayElimCell_11 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| v_arrayElimCell_11))) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)))) (exists ((v_ArrVal_1603 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1603)))) is different from true [2022-11-02 20:49:12,378 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-02 20:49:12,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 53 [2022-11-02 20:49:12,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 27 [2022-11-02 20:49:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 666 trivial. 287 not checked. [2022-11-02 20:49:12,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:12,947 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1651 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_1651) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2022-11-02 20:49:12,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:49:12,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863956978] [2022-11-02 20:49:12,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863956978] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:12,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [170219118] [2022-11-02 20:49:12,950 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:49:12,950 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 20:49:12,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 20:49:12,956 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 20:49:12,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-11-02 20:50:20,892 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2022-11-02 20:50:20,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:50:21,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-02 20:50:21,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:21,177 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-02 20:50:21,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-02 20:50:21,505 INFO L356 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2022-11-02 20:50:21,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 43 [2022-11-02 20:50:21,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:50:21,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-02 20:50:25,796 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-02 20:50:25,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2022-11-02 20:50:25,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2022-11-02 20:50:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-02 20:50:26,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:26,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [170219118] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:26,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:50:26,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 23 [2022-11-02 20:50:26,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402802017] [2022-11-02 20:50:26,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:26,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-02 20:50:26,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:50:26,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-02 20:50:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=339, Unknown=35, NotChecked=360, Total=812 [2022-11-02 20:50:26,421 INFO L87 Difference]: Start difference. First operand 601 states and 662 transitions. Second operand has 25 states, 22 states have (on average 6.590909090909091) internal successors, (145), 24 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:50:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:33,720 INFO L93 Difference]: Finished difference Result 1084 states and 1182 transitions. [2022-11-02 20:50:33,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 20:50:33,721 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 6.590909090909091) internal successors, (145), 24 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 110 [2022-11-02 20:50:33,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:33,725 INFO L225 Difference]: With dead ends: 1084 [2022-11-02 20:50:33,726 INFO L226 Difference]: Without dead ends: 1080 [2022-11-02 20:50:33,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 120 SyntacticMatches, 82 SemanticMatches, 39 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=195, Invalid=834, Unknown=59, NotChecked=552, Total=1640 [2022-11-02 20:50:33,727 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 550 mSDsluCounter, 3270 mSDsCounter, 0 mSdLazyCounter, 2764 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 11409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8615 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:33,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 3581 Invalid, 11409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2764 Invalid, 0 Unknown, 8615 Unchecked, 6.3s Time] [2022-11-02 20:50:33,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-11-02 20:50:33,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 793. [2022-11-02 20:50:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 596 states have (on average 1.511744966442953) internal successors, (901), 783 states have internal predecessors, (901), 15 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (16), 6 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-02 20:50:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 932 transitions. [2022-11-02 20:50:33,746 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 932 transitions. Word has length 110 [2022-11-02 20:50:33,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:33,747 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 932 transitions. [2022-11-02 20:50:33,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 6.590909090909091) internal successors, (145), 24 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:50:33,747 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 932 transitions. [2022-11-02 20:50:33,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-02 20:50:33,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:33,748 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:33,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-11-02 20:50:34,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:34,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt [2022-11-02 20:50:34,178 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] === [2022-11-02 20:50:34,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:34,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1476884033, now seen corresponding path program 1 times [2022-11-02 20:50:34,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:50:34,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842974841] [2022-11-02 20:50:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:34,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:50:34,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:50:34,180 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:50:34,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-02 20:50:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:35,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-02 20:50:35,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:35,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 20:50:35,312 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-02 20:50:35,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-02 20:50:35,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:50:35,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:50:35,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:50:35,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-11-02 20:50:35,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-02 20:50:35,633 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2459 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2459) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2458 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2458)))) is different from true [2022-11-02 20:50:35,692 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2463 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2463))) (exists ((v_ArrVal_2462 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2462) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:50:35,742 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2467 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2467))) (exists ((v_ArrVal_2466 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2466) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:50:35,830 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2472 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2472) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2473 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2473)))) is different from true [2022-11-02 20:50:36,003 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2482 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2482) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2483 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2483) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:50:36,057 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2486 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2486))) (exists ((v_ArrVal_2487 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2487) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:50:36,209 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2497 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2497) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2496 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2496)))) is different from true [2022-11-02 20:50:36,230 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2499 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2499))) (exists ((v_ArrVal_2498 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2498)))) is different from true [2022-11-02 20:50:36,244 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2500 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2500))) (exists ((v_ArrVal_2501 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2501) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:50:36,296 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2505 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2505) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2504 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2504) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-02 20:50:36,352 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2509 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2509) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2508 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2508)))) is different from true [2022-11-02 20:50:36,364 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2511 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2511) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2510 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2510) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-02 20:50:36,377 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2513 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2513))) (exists ((v_ArrVal_2512 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2512)))) is different from true [2022-11-02 20:50:36,560 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2525 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2525))) (exists ((v_ArrVal_2524 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2524) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:50:36,572 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2526 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2526))) (exists ((v_ArrVal_2527 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2527)))) is different from true [2022-11-02 20:50:36,584 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2528 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2528) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2529 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2529) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-02 20:50:36,597 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2530 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2530) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2531 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2531)))) is different from true [2022-11-02 20:50:36,609 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2532 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2532) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2533 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2533) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-02 20:50:36,724 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2540 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2540) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2541 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2541) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-02 20:50:36,799 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-02 20:50:36,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2022-11-02 20:50:36,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-02 20:50:36,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-02 20:50:36,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 20:50:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 300 trivial. 665 not checked. [2022-11-02 20:50:36,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:37,977 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2634 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2635 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2634) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2635) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2634) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd .cse1 (_ bv20 32))))))) is different from false [2022-11-02 20:50:37,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:50:37,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842974841] [2022-11-02 20:50:37,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842974841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:37,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1959025792] [2022-11-02 20:50:37,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:37,989 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-02 20:50:37,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 [2022-11-02 20:50:37,991 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-02 20:50:38,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e19ba5a-5160-4fc0-91a4-e9b58ff5bb03/bin/uautomizer-Dbtcem3rbc/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-02 20:52:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:22,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-02 20:52:22,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:52:22,042 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-02 20:52:22,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:52:22,220 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-02 20:52:22,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-02 20:52:22,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:52:22,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:52:22,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-02 20:52:22,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-02 20:52:22,528 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2995 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2995) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2994 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2994)))) is different from true [2022-11-02 20:52:22,578 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_2999 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2999))) (exists ((v_ArrVal_2998 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2998)))) is different from true [2022-11-02 20:52:22,592 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3001 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3001) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3000 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3000) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:52:22,642 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3005 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3005) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3004 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3004)))) is different from true [2022-11-02 20:52:22,657 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3007 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3007) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3006 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3006) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:52:22,749 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3013 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3013))) (exists ((v_ArrVal_3012 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3012)))) is different from true [2022-11-02 20:52:22,767 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3014 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3014))) (exists ((v_ArrVal_3015 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3015)))) is different from true [2022-11-02 20:52:22,779 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3017 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3017) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3016 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3016) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:52:22,804 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3019) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3018 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3018)))) is different from true [2022-11-02 20:52:22,823 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3021 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3021))) (exists ((v_ArrVal_3020 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3020)))) is different from true [2022-11-02 20:52:22,874 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3024 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3024))) (exists ((v_ArrVal_3025 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3025)))) is different from true [2022-11-02 20:52:22,926 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3028 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3028))) (exists ((v_ArrVal_3029 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3029)))) is different from true [2022-11-02 20:52:22,938 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3031 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3031) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3030 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3030)))) is different from true [2022-11-02 20:52:23,022 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3037 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3037))) (exists ((v_ArrVal_3036 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3036)))) is different from true [2022-11-02 20:52:23,106 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3042 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3042))) (exists ((v_ArrVal_3043 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3043) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:52:23,226 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3050 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3050))) (exists ((v_ArrVal_3051 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3051)))) is different from true [2022-11-02 20:52:23,241 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3052 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3052) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3053 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3053)))) is different from true [2022-11-02 20:52:23,292 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3056 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3056) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3057 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3057)))) is different from true [2022-11-02 20:52:23,305 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3059 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3059))) (exists ((v_ArrVal_3058 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3058)))) is different from true [2022-11-02 20:52:23,354 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3062 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3062))) (exists ((v_ArrVal_3063 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3063) |c_#memory_$Pointer$.base|))) is different from true [2022-11-02 20:52:23,441 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3069 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3069) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3068 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3068) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-02 20:52:23,454 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3070 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3070) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3071 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3071)))) is different from true [2022-11-02 20:52:23,501 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3074 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3074) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3075 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3075) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-02 20:52:23,514 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_23 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_23) (_ bv44 32))) (exists ((v_ArrVal_3076 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3076))) (exists ((v_ArrVal_3077 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3077) |c_#memory_$Pointer$.offset|))) is different from true