./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a --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 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --- 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-b5237d8 [2022-11-21 17:06:44,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:06:44,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:06:44,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:06:44,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:06:44,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:06:44,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:06:44,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:06:44,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:06:44,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:06:44,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:06:44,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:06:44,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:06:44,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:06:44,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:06:44,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:06:44,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:06:44,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:06:44,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:06:44,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:06:44,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:06:44,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:06:44,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:06:44,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:06:44,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:06:44,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:06:44,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:06:44,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:06:44,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:06:44,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:06:44,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:06:44,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:06:44,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:06:44,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:06:44,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:06:44,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:06:44,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:06:44,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:06:44,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:06:44,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:06:44,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:06:44,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 17:06:44,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:06:44,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:06:44,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:06:44,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:06:44,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:06:44,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:06:44,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:06:44,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:06:44,709 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:06:44,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:06:44,710 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:06:44,710 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:06:44,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:06:44,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:06:44,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:06:44,711 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 17:06:44,711 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 17:06:44,712 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 17:06:44,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:06:44,712 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:06:44,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:06:44,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:06:44,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:06:44,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:06:44,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:06:44,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:06:44,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:06:44,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:06:44,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:06:44,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:06:44,715 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_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad [2022-11-21 17:06:44,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:06:45,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:06:45,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:06:45,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:06:45,016 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:06:45,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-21 17:06:48,106 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:06:48,392 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:06:48,393 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-21 17:06:48,400 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data/edddc8516/ad5c3750469b4a20af5c5212fe9e1927/FLAG6a05a250c [2022-11-21 17:06:48,415 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data/edddc8516/ad5c3750469b4a20af5c5212fe9e1927 [2022-11-21 17:06:48,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:06:48,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:06:48,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:06:48,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:06:48,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:06:48,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:06:48" (1/1) ... [2022-11-21 17:06:48,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2976558a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:48, skipping insertion in model container [2022-11-21 17:06:48,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:06:48" (1/1) ... [2022-11-21 17:06:48,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:06:48,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:06:48,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-21 17:06:48,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:06:48,670 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) [2022-11-21 17:06:48,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54637980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:48, skipping insertion in model container [2022-11-21 17:06:48,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:06:48,671 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-21 17:06:48,673 INFO L158 Benchmark]: Toolchain (without parser) took 253.13ms. Allocated memory is still 201.3MB. Free memory was 165.8MB in the beginning and 155.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:06:48,674 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:06:48,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.49ms. Allocated memory is still 201.3MB. Free memory was 165.3MB in the beginning and 155.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:06:48,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.49ms. Allocated memory is still 201.3MB. Free memory was 165.3MB in the beginning and 155.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 123]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a --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 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --- 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-b5237d8 [2022-11-21 17:06:51,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:06:51,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:06:51,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:06:51,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:06:51,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:06:51,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:06:51,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:06:51,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:06:51,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:06:51,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:06:51,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:06:51,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:06:51,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:06:51,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:06:51,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:06:51,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:06:51,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:06:51,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:06:51,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:06:51,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:06:51,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:06:51,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:06:51,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:06:51,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:06:51,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:06:51,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:06:51,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:06:51,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:06:51,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:06:51,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:06:51,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:06:51,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:06:51,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:06:51,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:06:51,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:06:51,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:06:51,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:06:51,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:06:51,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:06:51,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:06:51,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 17:06:51,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:06:51,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:06:51,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:06:51,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:06:51,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:06:51,233 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:06:51,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:06:51,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:06:51,234 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:06:51,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:06:51,236 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:06:51,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:06:51,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:06:51,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:06:51,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:06:51,237 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 17:06:51,237 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 17:06:51,237 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 17:06:51,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:06:51,237 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:06:51,237 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:06:51,238 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:06:51,238 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:06:51,238 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:06:51,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:06:51,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:06:51,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:06:51,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:06:51,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:06:51,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:06:51,239 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:06:51,240 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:06:51,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:06:51,240 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_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad [2022-11-21 17:06:51,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:06:51,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:06:51,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:06:51,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:06:51,708 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:06:51,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-21 17:06:54,961 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:06:55,188 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:06:55,189 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-21 17:06:55,196 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data/c4923c148/d55e54e5d20b4b57b7b94be565ab48fd/FLAG3b0e02327 [2022-11-21 17:06:55,219 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/data/c4923c148/d55e54e5d20b4b57b7b94be565ab48fd [2022-11-21 17:06:55,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:06:55,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:06:55,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:06:55,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:06:55,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:06:55,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7bba28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55, skipping insertion in model container [2022-11-21 17:06:55,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:06:55,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:06:55,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-21 17:06:55,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:06:55,490 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 17:06:55,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:06:55,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-21 17:06:55,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:06:55,561 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:06:55,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-21 17:06:55,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:06:55,642 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:06:55,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55 WrapperNode [2022-11-21 17:06:55,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:06:55,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:06:55,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:06:55,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:06:55,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,734 INFO L138 Inliner]: procedures = 28, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 225 [2022-11-21 17:06:55,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:06:55,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:06:55,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:06:55,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:06:55,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:06:55,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:06:55,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:06:55,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:06:55,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (1/1) ... [2022-11-21 17:06:55,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:06:55,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:06:55,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:06:55,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:06:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:06:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 17:06:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:06:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 17:06:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 17:06:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 17:06:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 17:06:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 17:06:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 17:06:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 17:06:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 17:06:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 17:06:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:06:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:06:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:06:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:06:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 17:06:55,898 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:06:56,065 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:06:56,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:06:57,166 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:06:57,417 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:06:57,417 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-21 17:06:57,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:06:57 BoogieIcfgContainer [2022-11-21 17:06:57,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:06:57,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:06:57,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:06:57,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:06:57,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:06:55" (1/3) ... [2022-11-21 17:06:57,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473456a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:06:57, skipping insertion in model container [2022-11-21 17:06:57,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:55" (2/3) ... [2022-11-21 17:06:57,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473456a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:06:57, skipping insertion in model container [2022-11-21 17:06:57,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:06:57" (3/3) ... [2022-11-21 17:06:57,433 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2022-11-21 17:06:57,454 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:06:57,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-11-21 17:06:57,454 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:06:57,640 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 17:06:57,693 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 17:06:57,724 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 340 places, 357 transitions, 738 flow [2022-11-21 17:06:57,729 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 340 places, 357 transitions, 738 flow [2022-11-21 17:06:57,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 340 places, 357 transitions, 738 flow [2022-11-21 17:06:57,868 INFO L130 PetriNetUnfolder]: 27/354 cut-off events. [2022-11-21 17:06:57,868 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 17:06:57,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 354 events. 27/354 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 412 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 274. Up to 3 conditions per place. [2022-11-21 17:06:57,879 INFO L119 LiptonReduction]: Number of co-enabled transitions 5194 [2022-11-21 17:08:14,346 INFO L134 LiptonReduction]: Checked pairs total: 9109 [2022-11-21 17:08:14,347 INFO L136 LiptonReduction]: Total number of compositions: 419 [2022-11-21 17:08:14,355 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 84 transitions, 192 flow [2022-11-21 17:08:14,603 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4936 states, 3750 states have (on average 5.039733333333333) internal successors, (18899), 4935 states have internal predecessors, (18899), 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) [2022-11-21 17:08:14,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:08:14,631 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;@5f39ea9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:08:14,631 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2022-11-21 17:08:14,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 4936 states, 3750 states have (on average 5.039733333333333) internal successors, (18899), 4935 states have internal predecessors, (18899), 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) [2022-11-21 17:08:14,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-21 17:08:14,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:14,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-21 17:08:14,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:08:14,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash 45785, now seen corresponding path program 1 times [2022-11-21 17:08:14,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:08:14,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197870664] [2022-11-21 17:08:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:14,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:14,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:08:14,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:08:14,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 17:08:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:14,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:08:14,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:15,119 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-21 17:08:15,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 50 [2022-11-21 17:08:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:15,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:08:15,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:08:15,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197870664] [2022-11-21 17:08:15,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197870664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:15,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:15,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 17:08:15,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106637797] [2022-11-21 17:08:15,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:15,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:08:15,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:08:15,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:08:15,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:15,198 INFO L87 Difference]: Start difference. First operand has 4936 states, 3750 states have (on average 5.039733333333333) internal successors, (18899), 4935 states have internal predecessors, (18899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:15,768 INFO L93 Difference]: Finished difference Result 2816 states and 10887 transitions. [2022-11-21 17:08:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:08:15,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-21 17:08:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:15,816 INFO L225 Difference]: With dead ends: 2816 [2022-11-21 17:08:15,816 INFO L226 Difference]: Without dead ends: 2816 [2022-11-21 17:08:15,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:15,821 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:15,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:08:15,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2022-11-21 17:08:16,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2816. [2022-11-21 17:08:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2364 states have (on average 4.605329949238579) internal successors, (10887), 2815 states have internal predecessors, (10887), 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) [2022-11-21 17:08:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 10887 transitions. [2022-11-21 17:08:16,219 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 10887 transitions. Word has length 2 [2022-11-21 17:08:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:16,247 INFO L495 AbstractCegarLoop]: Abstraction has 2816 states and 10887 transitions. [2022-11-21 17:08:16,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 10887 transitions. [2022-11-21 17:08:16,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-21 17:08:16,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:16,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-21 17:08:16,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-21 17:08:16,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:16,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:08:16,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash 45786, now seen corresponding path program 1 times [2022-11-21 17:08:16,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:08:16,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199021153] [2022-11-21 17:08:16,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:16,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:16,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:08:16,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:08:16,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 17:08:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:16,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 17:08:16,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:16,896 INFO L321 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2022-11-21 17:08:16,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 44 [2022-11-21 17:08:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:16,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:08:16,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:08:16,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199021153] [2022-11-21 17:08:16,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199021153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:16,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:16,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 17:08:16,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495457058] [2022-11-21 17:08:16,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:16,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:08:16,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:08:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:08:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:16,959 INFO L87 Difference]: Start difference. First operand 2816 states and 10887 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:17,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:17,758 INFO L93 Difference]: Finished difference Result 2817 states and 10889 transitions. [2022-11-21 17:08:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:08:17,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-21 17:08:17,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:17,820 INFO L225 Difference]: With dead ends: 2817 [2022-11-21 17:08:17,821 INFO L226 Difference]: Without dead ends: 2817 [2022-11-21 17:08:17,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:17,822 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:17,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 17:08:17,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2022-11-21 17:08:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2817. [2022-11-21 17:08:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2365 states have (on average 4.604228329809725) internal successors, (10889), 2816 states have internal predecessors, (10889), 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) [2022-11-21 17:08:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 10889 transitions. [2022-11-21 17:08:18,043 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 10889 transitions. Word has length 2 [2022-11-21 17:08:18,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:18,044 INFO L495 AbstractCegarLoop]: Abstraction has 2817 states and 10889 transitions. [2022-11-21 17:08:18,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 10889 transitions. [2022-11-21 17:08:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 17:08:18,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:18,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 17:08:18,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:18,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:18,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:08:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1428107, now seen corresponding path program 1 times [2022-11-21 17:08:18,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:08:18,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399540979] [2022-11-21 17:08:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:18,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:18,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:08:18,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:08:18,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 17:08:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:18,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 17:08:18,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:18,634 INFO L321 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2022-11-21 17:08:18,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 44 [2022-11-21 17:08:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:18,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:19,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:08:19,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399540979] [2022-11-21 17:08:19,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399540979] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:19,048 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:08:19,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-21 17:08:19,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488793900] [2022-11-21 17:08:19,049 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:19,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:08:19,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:08:19,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:08:19,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:08:19,050 INFO L87 Difference]: Start difference. First operand 2817 states and 10889 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-11-21 17:08:20,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:22,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:24,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:24,017 INFO L93 Difference]: Finished difference Result 2824 states and 10914 transitions. [2022-11-21 17:08:24,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:08:24,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 3 [2022-11-21 17:08:24,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:24,063 INFO L225 Difference]: With dead ends: 2824 [2022-11-21 17:08:24,064 INFO L226 Difference]: Without dead ends: 2824 [2022-11-21 17:08:24,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:08:24,077 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 121 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:24,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 12 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-21 17:08:24,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2022-11-21 17:08:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2824. [2022-11-21 17:08:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 2372 states have (on average 4.601180438448567) internal successors, (10914), 2823 states have internal predecessors, (10914), 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) [2022-11-21 17:08:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 10914 transitions. [2022-11-21 17:08:24,238 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 10914 transitions. Word has length 3 [2022-11-21 17:08:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:24,239 INFO L495 AbstractCegarLoop]: Abstraction has 2824 states and 10914 transitions. [2022-11-21 17:08:24,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-11-21 17:08:24,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 10914 transitions. [2022-11-21 17:08:24,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:08:24,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:24,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:08:24,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-21 17:08:24,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:24,451 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:08:24,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1372766544, now seen corresponding path program 1 times [2022-11-21 17:08:24,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:08:24,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373275878] [2022-11-21 17:08:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:24,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:08:24,454 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:08:24,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-21 17:08:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:24,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 17:08:24,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:24,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:24,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:24,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:08:24,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373275878] [2022-11-21 17:08:24,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373275878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:24,822 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:08:24,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-21 17:08:24,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639034941] [2022-11-21 17:08:24,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:24,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:08:24,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:08:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:08:24,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:08:24,823 INFO L87 Difference]: Start difference. First operand 2824 states and 10914 transitions. Second operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-11-21 17:08:27,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:27,418 INFO L93 Difference]: Finished difference Result 8454 states and 32694 transitions. [2022-11-21 17:08:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:08:27,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 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 [2022-11-21 17:08:27,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:27,520 INFO L225 Difference]: With dead ends: 8454 [2022-11-21 17:08:27,521 INFO L226 Difference]: Without dead ends: 8454 [2022-11-21 17:08:27,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:08:27,527 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 241 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:27,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 20 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-21 17:08:27,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8454 states. [2022-11-21 17:08:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8454 to 2829. [2022-11-21 17:08:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2377 states have (on average 4.59570887673538) internal successors, (10924), 2828 states have internal predecessors, (10924), 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) [2022-11-21 17:08:27,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 10924 transitions. [2022-11-21 17:08:27,806 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 10924 transitions. Word has length 5 [2022-11-21 17:08:27,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:27,806 INFO L495 AbstractCegarLoop]: Abstraction has 2829 states and 10924 transitions. [2022-11-21 17:08:27,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-11-21 17:08:27,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 10924 transitions. [2022-11-21 17:08:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 17:08:27,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:27,807 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-11-21 17:08:27,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:28,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:28,072 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:08:28,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash -396257510, now seen corresponding path program 2 times [2022-11-21 17:08:28,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:08:28,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676246282] [2022-11-21 17:08:28,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:08:28,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:28,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:08:28,077 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:08:28,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-21 17:08:28,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:08:28,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:08:28,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-21 17:08:28,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:28,351 INFO L321 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2022-11-21 17:08:28,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 44 [2022-11-21 17:08:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:28,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:29,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:08:29,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676246282] [2022-11-21 17:08:29,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676246282] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:29,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:08:29,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2022-11-21 17:08:29,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143292307] [2022-11-21 17:08:29,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:29,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 17:08:29,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:08:29,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 17:08:29,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:08:29,413 INFO L87 Difference]: Start difference. First operand 2829 states and 10924 transitions. Second operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:32,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:34,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:36,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:38,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:40,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:42,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:44,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:46,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:51,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:51,337 INFO L93 Difference]: Finished difference Result 5644 states and 21807 transitions. [2022-11-21 17:08:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 17:08:51,340 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-21 17:08:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:51,374 INFO L225 Difference]: With dead ends: 5644 [2022-11-21 17:08:51,374 INFO L226 Difference]: Without dead ends: 5644 [2022-11-21 17:08:51,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:08:51,375 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 278 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 71 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:51,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 48 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 735 Invalid, 8 Unknown, 0 Unchecked, 20.5s Time] [2022-11-21 17:08:51,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5644 states. [2022-11-21 17:08:51,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5644 to 2835. [2022-11-21 17:08:51,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2383 states have (on average 4.589173310952581) internal successors, (10936), 2834 states have internal predecessors, (10936), 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) [2022-11-21 17:08:51,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 10936 transitions. [2022-11-21 17:08:51,506 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 10936 transitions. Word has length 6 [2022-11-21 17:08:51,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:51,506 INFO L495 AbstractCegarLoop]: Abstraction has 2835 states and 10936 transitions. [2022-11-21 17:08:51,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:51,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 10936 transitions. [2022-11-21 17:08:51,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 17:08:51,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:51,507 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-21 17:08:51,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:51,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:51,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:08:51,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash -394006294, now seen corresponding path program 1 times [2022-11-21 17:08:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:08:51,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683582863] [2022-11-21 17:08:51,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:51,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:08:51,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:08:51,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:08:51,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-21 17:08:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:51,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-21 17:08:51,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:51,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 17:08:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:52,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:52,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:08:52,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683582863] [2022-11-21 17:08:52,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683582863] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:52,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:08:52,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2022-11-21 17:08:52,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209306817] [2022-11-21 17:08:52,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:52,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:08:52,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:08:52,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:08:52,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:08:52,636 INFO L87 Difference]: Start difference. First operand 2835 states and 10936 transitions. Second operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:54,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:01,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:01,537 INFO L93 Difference]: Finished difference Result 16888 states and 65326 transitions. [2022-11-21 17:09:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 17:09:01,539 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-21 17:09:01,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:01,666 INFO L225 Difference]: With dead ends: 16888 [2022-11-21 17:09:01,666 INFO L226 Difference]: Without dead ends: 16888 [2022-11-21 17:09:01,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2022-11-21 17:09:01,668 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 720 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:01,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 64 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-11-21 17:09:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16888 states. [2022-11-21 17:09:02,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16888 to 2841. [2022-11-21 17:09:02,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2389 states have (on average 4.585600669736292) internal successors, (10955), 2840 states have internal predecessors, (10955), 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) [2022-11-21 17:09:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 10955 transitions. [2022-11-21 17:09:02,140 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 10955 transitions. Word has length 6 [2022-11-21 17:09:02,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:02,140 INFO L495 AbstractCegarLoop]: Abstraction has 2841 states and 10955 transitions. [2022-11-21 17:09:02,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:09:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 10955 transitions. [2022-11-21 17:09:02,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 17:09:02,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:02,141 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-21 17:09:02,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:09:02,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:09:02,342 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:09:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash 603179035, now seen corresponding path program 2 times [2022-11-21 17:09:02,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:09:02,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265726177] [2022-11-21 17:09:02,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:09:02,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:09:02,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:09:02,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:09:02,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-21 17:09:02,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:09:02,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:09:02,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 17:09:02,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:09:02,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 17:09:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 17:09:02,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:09:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 17:09:03,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:09:03,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265726177] [2022-11-21 17:09:03,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265726177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:09:03,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:09:03,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-21 17:09:03,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241417621] [2022-11-21 17:09:03,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:09:03,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:09:03,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:09:03,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:09:03,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:09:03,290 INFO L87 Difference]: Start difference. First operand 2841 states and 10955 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:09:05,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:07,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:10,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:12,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:15,071 INFO L93 Difference]: Finished difference Result 11275 states and 43590 transitions. [2022-11-21 17:09:15,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:09:15,073 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 17:09:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:15,178 INFO L225 Difference]: With dead ends: 11275 [2022-11-21 17:09:15,178 INFO L226 Difference]: Without dead ends: 11275 [2022-11-21 17:09:15,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:09:15,179 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1014 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:15,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 32 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 490 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-11-21 17:09:15,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11275 states. [2022-11-21 17:09:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11275 to 2840. [2022-11-21 17:09:15,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2388 states have (on average 4.586264656616415) internal successors, (10952), 2839 states have internal predecessors, (10952), 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) [2022-11-21 17:09:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 10952 transitions. [2022-11-21 17:09:15,362 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 10952 transitions. Word has length 7 [2022-11-21 17:09:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:15,363 INFO L495 AbstractCegarLoop]: Abstraction has 2840 states and 10952 transitions. [2022-11-21 17:09:15,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:09:15,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 10952 transitions. [2022-11-21 17:09:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 17:09:15,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:15,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:09:15,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-21 17:09:15,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:09:15,577 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] === [2022-11-21 17:09:15,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:15,577 INFO L85 PathProgramCache]: Analyzing trace with hash 670808880, now seen corresponding path program 1 times [2022-11-21 17:09:15,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:09:15,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844205815] [2022-11-21 17:09:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:15,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:09:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:09:15,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 17:09:15,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82515498-87a4-4516-981b-0fb66b172568/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-21 17:09:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:15,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-21 17:09:15,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:09:15,926 INFO L321 Elim1Store]: treesize reduction 103, result has 24.8 percent of original size [2022-11-21 17:09:15,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 59 [2022-11-21 17:09:16,740 INFO L321 Elim1Store]: treesize reduction 48, result has 68.6 percent of original size [2022-11-21 17:09:16,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 163 [2022-11-21 17:09:27,644 INFO L321 Elim1Store]: treesize reduction 60, result has 72.2 percent of original size [2022-11-21 17:09:27,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 252