./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8 --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 64bit --witnessprinter.graph.data.programhash de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 --- 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-2329fc7 [2022-12-13 12:32:58,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:32:58,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:32:58,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:32:58,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:32:58,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:32:58,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:32:58,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:32:58,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:32:58,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:32:58,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:32:58,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:32:58,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:32:58,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:32:58,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:32:58,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:32:58,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:32:58,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:32:58,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:32:58,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:32:58,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:32:58,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:32:58,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:32:58,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:32:58,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:32:58,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:32:58,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:32:58,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:32:58,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:32:58,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:32:58,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:32:58,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:32:58,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:32:58,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:32:58,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:32:58,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:32:58,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:32:58,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:32:58,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:32:58,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:32:58,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:32:58,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2022-12-13 12:32:58,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:32:58,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:32:58,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:32:58,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:32:58,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:32:58,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:32:58,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:32:58,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:32:58,792 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:32:58,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:32:58,792 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:32:58,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:32:58,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:32:58,793 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:32:58,793 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:32:58,793 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:32:58,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:32:58,793 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:32:58,793 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:32:58,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:32:58,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:32:58,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:32:58,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:32:58,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:32:58,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:32:58,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:32:58,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:32:58,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:32:58,795 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:32:58,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:32:58,795 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:32:58,795 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 [2022-12-13 12:32:58,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:32:58,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:32:59,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:32:59,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:32:59,001 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:32:59,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-12-13 12:33:01,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:33:01,922 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:33:01,922 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-12-13 12:33:01,940 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data/2a6bb9c97/46fbb58c10aa44fba6b6f687905a6eb1/FLAGe6d60aad5 [2022-12-13 12:33:01,950 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data/2a6bb9c97/46fbb58c10aa44fba6b6f687905a6eb1 [2022-12-13 12:33:01,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:33:01,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:33:01,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:33:01,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:33:01,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:33:01,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:33:01" (1/1) ... [2022-12-13 12:33:01,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eca8d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:01, skipping insertion in model container [2022-12-13 12:33:01,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:33:01" (1/1) ... [2022-12-13 12:33:01,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:33:02,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:33:02,547 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 12:33:02,552 WARN L623 FunctionHandler]: Unknown extern function gethostid [2022-12-13 12:33:02,569 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-13 12:33:02,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:33:02,596 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) [2022-12-13 12:33:02,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38e07c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:02, skipping insertion in model container [2022-12-13 12:33:02,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:33:02,597 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 12:33:02,599 INFO L158 Benchmark]: Toolchain (without parser) took 644.82ms. Allocated memory is still 140.5MB. Free memory was 99.7MB in the beginning and 78.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 12:33:02,599 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:33:02,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.11ms. Allocated memory is still 140.5MB. Free memory was 99.7MB in the beginning and 78.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 12:33:02,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.11ms. Allocated memory is still 140.5MB. Free memory was 99.7MB in the beginning and 78.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1774]: 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_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8 --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 64bit --witnessprinter.graph.data.programhash de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 --- 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-2329fc7 [2022-12-13 12:33:04,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:33:04,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:33:04,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:33:04,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:33:04,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:33:04,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:33:04,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:33:04,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:33:04,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:33:04,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:33:04,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:33:04,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:33:04,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:33:04,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:33:04,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:33:04,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:33:04,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:33:04,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:33:04,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:33:04,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:33:04,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:33:04,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:33:04,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:33:04,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:33:04,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:33:04,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:33:04,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:33:04,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:33:04,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:33:04,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:33:04,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:33:04,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:33:04,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:33:04,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:33:04,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:33:04,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:33:04,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:33:04,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:33:04,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:33:04,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:33:04,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2022-12-13 12:33:04,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:33:04,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:33:04,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:33:04,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:33:04,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:33:04,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:33:04,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:33:04,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:33:04,095 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:33:04,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:33:04,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:33:04,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:33:04,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:33:04,096 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:33:04,096 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:33:04,097 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:33:04,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:33:04,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:33:04,097 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:33:04,097 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:33:04,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:33:04,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:33:04,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:33:04,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:33:04,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:33:04,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:33:04,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:33:04,099 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:33:04,103 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:33:04,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:33:04,103 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:33:04,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:33:04,103 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:33:04,104 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:33:04,104 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 [2022-12-13 12:33:04,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:33:04,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:33:04,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:33:04,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:33:04,325 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:33:04,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-12-13 12:33:06,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:33:07,136 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:33:07,137 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-12-13 12:33:07,150 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data/a92d8d2f1/8a7694ba658643a18e08444f394efe87/FLAG943d198bb [2022-12-13 12:33:07,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/data/a92d8d2f1/8a7694ba658643a18e08444f394efe87 [2022-12-13 12:33:07,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:33:07,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:33:07,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:33:07,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:33:07,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:33:07,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:33:07" (1/1) ... [2022-12-13 12:33:07,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325c1a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:07, skipping insertion in model container [2022-12-13 12:33:07,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:33:07" (1/1) ... [2022-12-13 12:33:07,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:33:07,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:33:07,753 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 12:33:07,758 WARN L623 FunctionHandler]: Unknown extern function gethostid [2022-12-13 12:33:07,773 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-13 12:33:07,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:33:07,800 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 12:33:07,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:33:07,855 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 12:33:07,857 WARN L623 FunctionHandler]: Unknown extern function gethostid [2022-12-13 12:33:07,865 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-13 12:33:07,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:33:07,880 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:33:07,932 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 12:33:07,933 WARN L623 FunctionHandler]: Unknown extern function gethostid [2022-12-13 12:33:07,941 WARN L623 FunctionHandler]: Unknown extern function getopt [2022-12-13 12:33:07,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:33:08,061 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:33:08,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08 WrapperNode [2022-12-13 12:33:08,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:33:08,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:33:08,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:33:08,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:33:08,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,107 INFO L138 Inliner]: procedures = 529, calls = 61, calls flagged for inlining = 7, calls inlined = 6, statements flattened = 130 [2022-12-13 12:33:08,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:33:08,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:33:08,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:33:08,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:33:08,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:33:08,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:33:08,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:33:08,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:33:08,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (1/1) ... [2022-12-13 12:33:08,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:33:08,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:33:08,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:33:08,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:33:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:33:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:33:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 12:33:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-12-13 12:33:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:33:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 12:33:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:33:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:33:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 12:33:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 12:33:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 12:33:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-12-13 12:33:08,432 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:33:08,433 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:33:08,969 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:33:08,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:33:08,974 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 12:33:08,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:33:08 BoogieIcfgContainer [2022-12-13 12:33:08,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:33:08,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:33:08,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:33:08,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:33:08,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:33:07" (1/3) ... [2022-12-13 12:33:08,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ed2576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:33:08, skipping insertion in model container [2022-12-13 12:33:08,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:33:08" (2/3) ... [2022-12-13 12:33:08,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ed2576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:33:08, skipping insertion in model container [2022-12-13 12:33:08,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:33:08" (3/3) ... [2022-12-13 12:33:08,981 INFO L112 eAbstractionObserver]: Analyzing ICFG hostid.i [2022-12-13 12:33:08,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:33:08,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-12-13 12:33:09,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:33:09,038 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b1fe6a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:33:09,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-12-13 12:33:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 55 states have (on average 1.8545454545454545) internal successors, (102), 92 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-13 12:33:09,045 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:09,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-13 12:33:09,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:09,051 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-12-13 12:33:09,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:09,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994103838] [2022-12-13 12:33:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:09,062 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 [2022-12-13 12:33:09,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:09,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:09,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:09,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 12:33:09,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:09,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-13 12:33:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:09,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:09,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:09,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994103838] [2022-12-13 12:33:09,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994103838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:09,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:09,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:33:09,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942200582] [2022-12-13 12:33:09,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:09,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:33:09,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:09,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:33:09,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:09,273 INFO L87 Difference]: Start difference. First operand has 95 states, 55 states have (on average 1.8545454545454545) internal successors, (102), 92 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:33:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:09,470 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2022-12-13 12:33:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:33:09,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-13 12:33:09,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:09,478 INFO L225 Difference]: With dead ends: 109 [2022-12-13 12:33:09,478 INFO L226 Difference]: Without dead ends: 107 [2022-12-13 12:33:09,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:09,481 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 70 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:09,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:33:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-13 12:33:09,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91. [2022-12-13 12:33:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 88 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:09,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2022-12-13 12:33:09,508 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 3 [2022-12-13 12:33:09,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:09,508 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2022-12-13 12:33:09,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:33:09,509 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2022-12-13 12:33:09,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-13 12:33:09,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:09,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-13 12:33:09,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:33:09,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:09,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:09,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-12-13 12:33:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:09,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994256412] [2022-12-13 12:33:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:09,712 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 [2022-12-13 12:33:09,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:09,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:09,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:09,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:33:09,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:09,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 12:33:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:09,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:09,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:09,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994256412] [2022-12-13 12:33:09,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994256412] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:09,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:09,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:33:09,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326686795] [2022-12-13 12:33:09,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:09,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:33:09,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:33:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:09,836 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:33:10,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:10,142 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2022-12-13 12:33:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:33:10,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-13 12:33:10,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:10,143 INFO L225 Difference]: With dead ends: 90 [2022-12-13 12:33:10,143 INFO L226 Difference]: Without dead ends: 90 [2022-12-13 12:33:10,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:10,144 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 9 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:10,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 142 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:33:10,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-12-13 12:33:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-12-13 12:33:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 54 states have (on average 1.7037037037037037) internal successors, (92), 87 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2022-12-13 12:33:10,149 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 3 [2022-12-13 12:33:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:10,149 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2022-12-13 12:33:10,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:33:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2022-12-13 12:33:10,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 12:33:10,149 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:10,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:33:10,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 12:33:10,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:10,352 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:10,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:10,354 INFO L85 PathProgramCache]: Analyzing trace with hash 889446313, now seen corresponding path program 1 times [2022-12-13 12:33:10,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:10,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549711196] [2022-12-13 12:33:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:10,357 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 [2022-12-13 12:33:10,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:10,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:10,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:10,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:33:10,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:10,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 12:33:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:10,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:10,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:10,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549711196] [2022-12-13 12:33:10,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549711196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:10,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:10,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:33:10,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114377366] [2022-12-13 12:33:10,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:10,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:33:10,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:10,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:33:10,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:33:10,545 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2022-12-13 12:33:10,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:10,830 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2022-12-13 12:33:10,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:33:10,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-13 12:33:10,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:10,831 INFO L225 Difference]: With dead ends: 94 [2022-12-13 12:33:10,831 INFO L226 Difference]: Without dead ends: 94 [2022-12-13 12:33:10,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:33:10,833 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:10,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 141 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:33:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-13 12:33:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2022-12-13 12:33:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 89 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2022-12-13 12:33:10,838 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 6 [2022-12-13 12:33:10,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:10,838 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2022-12-13 12:33:10,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2022-12-13 12:33:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2022-12-13 12:33:10,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 12:33:10,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:10,838 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:10,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:11,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:11,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:11,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1261842348, now seen corresponding path program 1 times [2022-12-13 12:33:11,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:11,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562689820] [2022-12-13 12:33:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:11,046 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 [2022-12-13 12:33:11,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:11,049 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:11,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:11,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:33:11,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:11,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 12:33:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:11,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:33:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:11,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:11,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562689820] [2022-12-13 12:33:11,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562689820] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:33:11,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 12:33:11,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-12-13 12:33:11,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953199186] [2022-12-13 12:33:11,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 12:33:11,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:33:11,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:33:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:33:11,781 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-12-13 12:33:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:13,333 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2022-12-13 12:33:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:33:13,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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 10 [2022-12-13 12:33:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:13,334 INFO L225 Difference]: With dead ends: 98 [2022-12-13 12:33:13,334 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 12:33:13,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:33:13,335 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 18 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:13,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 301 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 12:33:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 12:33:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-13 12:33:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 95 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2022-12-13 12:33:13,339 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 10 [2022-12-13 12:33:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:13,339 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2022-12-13 12:33:13,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-12-13 12:33:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2022-12-13 12:33:13,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 12:33:13,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:13,340 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:13,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 12:33:13,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:13,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:13,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:13,543 INFO L85 PathProgramCache]: Analyzing trace with hash -821954458, now seen corresponding path program 1 times [2022-12-13 12:33:13,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:13,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917086761] [2022-12-13 12:33:13,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:13,546 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 [2022-12-13 12:33:13,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:13,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:13,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:13,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:33:13,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:13,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:33:13,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:13,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:13,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917086761] [2022-12-13 12:33:13,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917086761] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:33:13,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 12:33:13,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 12:33:13,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919424298] [2022-12-13 12:33:13,771 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 12:33:13,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:33:13,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:13,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:33:13,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:33:13,773 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 12:33:13,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:13,965 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2022-12-13 12:33:13,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:33:13,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-12-13 12:33:13,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:13,966 INFO L225 Difference]: With dead ends: 118 [2022-12-13 12:33:13,966 INFO L226 Difference]: Without dead ends: 118 [2022-12-13 12:33:13,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:33:13,967 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 18 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:13,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 624 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:33:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-13 12:33:13,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-12-13 12:33:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 115 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:13,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 122 transitions. [2022-12-13 12:33:13,971 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 122 transitions. Word has length 25 [2022-12-13 12:33:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:13,971 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 122 transitions. [2022-12-13 12:33:13,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 12:33:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2022-12-13 12:33:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 12:33:13,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:13,972 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:13,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 12:33:14,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:14,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash -34072841, now seen corresponding path program 2 times [2022-12-13 12:33:14,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:14,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696306613] [2022-12-13 12:33:14,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:33:14,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:33:14,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:14,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:14,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:14,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:33:14,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:33:14,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:33:14,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:14,333 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 12:33:14,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-13 12:33:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-12-13 12:33:14,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:14,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:14,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696306613] [2022-12-13 12:33:14,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696306613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:14,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:14,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:33:14,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463655905] [2022-12-13 12:33:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:14,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:33:14,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:14,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:33:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:14,363 INFO L87 Difference]: Start difference. First operand 118 states and 122 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:14,583 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2022-12-13 12:33:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:33:14,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-12-13 12:33:14,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:14,585 INFO L225 Difference]: With dead ends: 129 [2022-12-13 12:33:14,585 INFO L226 Difference]: Without dead ends: 129 [2022-12-13 12:33:14,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:33:14,586 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 55 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:14,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 91 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:33:14,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-12-13 12:33:14,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 113. [2022-12-13 12:33:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 110 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:14,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2022-12-13 12:33:14,593 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 45 [2022-12-13 12:33:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:14,593 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2022-12-13 12:33:14,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2022-12-13 12:33:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 12:33:14,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:14,594 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:14,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:14,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:14,796 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:14,798 INFO L85 PathProgramCache]: Analyzing trace with hash -34072840, now seen corresponding path program 1 times [2022-12-13 12:33:14,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:14,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389647990] [2022-12-13 12:33:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:14,800 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 [2022-12-13 12:33:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:14,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:14,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:14,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 12:33:14,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:15,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:33:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:33:15,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:15,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389647990] [2022-12-13 12:33:15,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389647990] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:33:15,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 12:33:15,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-12-13 12:33:15,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670457002] [2022-12-13 12:33:15,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 12:33:15,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 12:33:15,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 12:33:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-12-13 12:33:15,324 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 12:33:15,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:15,765 INFO L93 Difference]: Finished difference Result 121 states and 125 transitions. [2022-12-13 12:33:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 12:33:15,765 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-12-13 12:33:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:15,766 INFO L225 Difference]: With dead ends: 121 [2022-12-13 12:33:15,766 INFO L226 Difference]: Without dead ends: 121 [2022-12-13 12:33:15,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-12-13 12:33:15,766 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 9 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:15,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1241 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 12:33:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-13 12:33:15,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-12-13 12:33:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 118 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 125 transitions. [2022-12-13 12:33:15,770 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 125 transitions. Word has length 45 [2022-12-13 12:33:15,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:15,771 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 125 transitions. [2022-12-13 12:33:15,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 12:33:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 125 transitions. [2022-12-13 12:33:15,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 12:33:15,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:15,773 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:15,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 12:33:15,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:15,974 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:15,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:15,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2087093682, now seen corresponding path program 2 times [2022-12-13 12:33:15,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:15,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018308700] [2022-12-13 12:33:15,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:33:15,977 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 [2022-12-13 12:33:15,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:15,978 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:15,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:16,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:33:16,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:33:16,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:33:16,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:16,185 INFO L321 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2022-12-13 12:33:16,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2022-12-13 12:33:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 12:33:16,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:16,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:16,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018308700] [2022-12-13 12:33:16,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018308700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:16,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:16,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:33:16,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787416561] [2022-12-13 12:33:16,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:16,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:33:16,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:16,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:33:16,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:33:16,277 INFO L87 Difference]: Start difference. First operand 121 states and 125 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:16,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:16,623 INFO L93 Difference]: Finished difference Result 161 states and 167 transitions. [2022-12-13 12:33:16,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:33:16,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-12-13 12:33:16,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:16,625 INFO L225 Difference]: With dead ends: 161 [2022-12-13 12:33:16,625 INFO L226 Difference]: Without dead ends: 161 [2022-12-13 12:33:16,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:33:16,625 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 160 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:16,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 251 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:33:16,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-13 12:33:16,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 139. [2022-12-13 12:33:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.4) internal successors, (154), 136 states have internal predecessors, (154), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:16,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 156 transitions. [2022-12-13 12:33:16,629 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 156 transitions. Word has length 53 [2022-12-13 12:33:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:16,629 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 156 transitions. [2022-12-13 12:33:16,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 156 transitions. [2022-12-13 12:33:16,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 12:33:16,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:16,630 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:16,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-12-13 12:33:16,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:16,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:16,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:16,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1633693263, now seen corresponding path program 1 times [2022-12-13 12:33:16,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:16,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983740811] [2022-12-13 12:33:16,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:16,834 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 [2022-12-13 12:33:16,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:16,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:16,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 12:33:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:17,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 12:33:17,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:17,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 12:33:17,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 12:33:17,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 12:33:17,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 12:33:17,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-12-13 12:33:17,514 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 12:33:17,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-13 12:33:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 12:33:17,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:17,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:17,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983740811] [2022-12-13 12:33:17,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983740811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:17,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:17,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:33:17,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382736871] [2022-12-13 12:33:17,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:17,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:33:17,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:33:17,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:33:17,608 INFO L87 Difference]: Start difference. First operand 139 states and 156 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:19,218 INFO L93 Difference]: Finished difference Result 156 states and 162 transitions. [2022-12-13 12:33:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:33:19,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-12-13 12:33:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:19,220 INFO L225 Difference]: With dead ends: 156 [2022-12-13 12:33:19,220 INFO L226 Difference]: Without dead ends: 156 [2022-12-13 12:33:19,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:33:19,220 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 270 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:19,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 224 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 12:33:19,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-12-13 12:33:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 133. [2022-12-13 12:33:19,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 130 states have internal predecessors, (142), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:19,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2022-12-13 12:33:19,224 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 56 [2022-12-13 12:33:19,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:19,224 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2022-12-13 12:33:19,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2022-12-13 12:33:19,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-13 12:33:19,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:19,225 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:19,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 12:33:19,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:19,427 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:19,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:19,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1213382400, now seen corresponding path program 1 times [2022-12-13 12:33:19,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:19,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568035874] [2022-12-13 12:33:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:19,430 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 [2022-12-13 12:33:19,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:19,433 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:19,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 12:33:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:19,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 12:33:19,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:19,834 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-13 12:33:19,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-13 12:33:19,871 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 12:33:19,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-12-13 12:33:20,079 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 12:33:20,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-13 12:33:20,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-12-13 12:33:20,300 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 12:33:20,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:20,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:20,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568035874] [2022-12-13 12:33:20,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568035874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:20,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:20,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:33:20,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602961936] [2022-12-13 12:33:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:20,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:33:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:20,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:33:20,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:33:20,302 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:22,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:22,336 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2022-12-13 12:33:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:33:22,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-12-13 12:33:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:22,337 INFO L225 Difference]: With dead ends: 150 [2022-12-13 12:33:22,337 INFO L226 Difference]: Without dead ends: 150 [2022-12-13 12:33:22,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:33:22,338 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 174 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:22,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 283 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 12:33:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-13 12:33:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 137. [2022-12-13 12:33:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 110 states have (on average 1.3363636363636364) internal successors, (147), 134 states have internal predecessors, (147), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2022-12-13 12:33:22,341 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 59 [2022-12-13 12:33:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:22,341 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2022-12-13 12:33:22,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:22,341 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2022-12-13 12:33:22,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 12:33:22,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:22,342 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:22,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 12:33:22,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:22,544 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:22,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1430304375, now seen corresponding path program 1 times [2022-12-13 12:33:22,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:22,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67901363] [2022-12-13 12:33:22,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:22,548 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 [2022-12-13 12:33:22,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:22,549 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:22,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 12:33:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:22,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 12:33:22,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:22,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-13 12:33:22,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:23,086 INFO L321 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2022-12-13 12:33:23,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 30 [2022-12-13 12:33:23,184 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 12:33:23,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 14 [2022-12-13 12:33:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 12:33:23,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:23,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:23,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67901363] [2022-12-13 12:33:23,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67901363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:23,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:23,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:33:23,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931741955] [2022-12-13 12:33:23,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:23,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:33:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:33:23,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:33:23,209 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:25,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 12:33:27,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 12:33:28,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:28,063 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2022-12-13 12:33:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:33:28,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-12-13 12:33:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:28,064 INFO L225 Difference]: With dead ends: 135 [2022-12-13 12:33:28,064 INFO L226 Difference]: Without dead ends: 135 [2022-12-13 12:33:28,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:33:28,065 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 69 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:28,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 271 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-12-13 12:33:28,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-13 12:33:28,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-12-13 12:33:28,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 110 states have (on average 1.309090909090909) internal successors, (144), 132 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2022-12-13 12:33:28,072 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 62 [2022-12-13 12:33:28,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:28,072 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2022-12-13 12:33:28,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2022-12-13 12:33:28,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 12:33:28,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:28,073 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:28,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 12:33:28,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:28,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:28,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1430304376, now seen corresponding path program 1 times [2022-12-13 12:33:28,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:28,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707252372] [2022-12-13 12:33:28,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:28,279 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 [2022-12-13 12:33:28,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:28,280 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:28,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 12:33:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:28,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 12:33:28,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:28,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 12:33:28,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 12:33:28,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:28,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:28,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-12-13 12:33:28,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-12-13 12:33:28,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-12-13 12:33:28,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9 [2022-12-13 12:33:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 12:33:29,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:29,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:29,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707252372] [2022-12-13 12:33:29,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707252372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:29,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:29,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:33:29,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757536175] [2022-12-13 12:33:29,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:29,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:33:29,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:29,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:33:29,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:33:29,004 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:29,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:29,465 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2022-12-13 12:33:29,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:33:29,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-12-13 12:33:29,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:29,466 INFO L225 Difference]: With dead ends: 134 [2022-12-13 12:33:29,467 INFO L226 Difference]: Without dead ends: 134 [2022-12-13 12:33:29,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:33:29,467 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 65 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:29,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 208 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 12:33:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-13 12:33:29,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-13 12:33:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 110 states have (on average 1.290909090909091) internal successors, (142), 131 states have internal predecessors, (142), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:29,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2022-12-13 12:33:29,470 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 62 [2022-12-13 12:33:29,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:29,470 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2022-12-13 12:33:29,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:29,470 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2022-12-13 12:33:29,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 12:33:29,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:29,471 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:29,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 12:33:29,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:29,672 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:29,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1064372062, now seen corresponding path program 1 times [2022-12-13 12:33:29,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:29,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699707439] [2022-12-13 12:33:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:29,677 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 [2022-12-13 12:33:29,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:29,678 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:29,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-13 12:33:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:30,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 12:33:30,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:30,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 12:33:30,158 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 12:33:30,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-13 12:33:30,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:30,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2022-12-13 12:33:30,407 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 12:33:30,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-13 12:33:30,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-12-13 12:33:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 12:33:30,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:30,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:30,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699707439] [2022-12-13 12:33:30,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699707439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:30,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:30,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:33:30,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134355016] [2022-12-13 12:33:30,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:30,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:33:30,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:30,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:33:30,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:33:30,522 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:31,719 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2022-12-13 12:33:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:33:31,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-12-13 12:33:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:31,721 INFO L225 Difference]: With dead ends: 157 [2022-12-13 12:33:31,721 INFO L226 Difference]: Without dead ends: 157 [2022-12-13 12:33:31,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:33:31,722 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 127 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:31,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 232 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 12:33:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-12-13 12:33:31,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2022-12-13 12:33:31,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.319327731092437) internal successors, (157), 140 states have internal predecessors, (157), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:31,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 159 transitions. [2022-12-13 12:33:31,725 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 159 transitions. Word has length 66 [2022-12-13 12:33:31,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:31,725 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 159 transitions. [2022-12-13 12:33:31,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:31,725 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 159 transitions. [2022-12-13 12:33:31,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 12:33:31,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:31,726 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:31,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-12-13 12:33:31,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:31,928 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:31,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:31,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1064372061, now seen corresponding path program 1 times [2022-12-13 12:33:31,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:31,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810045308] [2022-12-13 12:33:31,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:31,932 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 [2022-12-13 12:33:31,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:31,935 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:31,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-13 12:33:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:32,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 12:33:32,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:32,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 12:33:32,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 12:33:32,400 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 12:33:32,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-13 12:33:32,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:32,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:32,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-12-13 12:33:32,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-12-13 12:33:32,721 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 12:33:32,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2022-12-13 12:33:32,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-13 12:33:32,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 13 [2022-12-13 12:33:32,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-12-13 12:33:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 12:33:32,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:33:32,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:32,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810045308] [2022-12-13 12:33:32,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810045308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:33:32,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:33:32,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 12:33:32,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352117856] [2022-12-13 12:33:32,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:33:32,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:33:32,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:32,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:33:32,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:33:32,898 INFO L87 Difference]: Start difference. First operand 143 states and 159 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:33,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:33,947 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2022-12-13 12:33:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 12:33:33,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-12-13 12:33:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:33,949 INFO L225 Difference]: With dead ends: 155 [2022-12-13 12:33:33,949 INFO L226 Difference]: Without dead ends: 155 [2022-12-13 12:33:33,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-12-13 12:33:33,950 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 102 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:33,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 244 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 12:33:33,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-12-13 12:33:33,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 143. [2022-12-13 12:33:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 140 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 155 transitions. [2022-12-13 12:33:33,952 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 155 transitions. Word has length 66 [2022-12-13 12:33:33,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:33,953 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 155 transitions. [2022-12-13 12:33:33,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:33,953 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 155 transitions. [2022-12-13 12:33:33,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 12:33:33,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:33,953 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:33,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-12-13 12:33:34,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:34,155 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:34,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1328353215, now seen corresponding path program 1 times [2022-12-13 12:33:34,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:34,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852264409] [2022-12-13 12:33:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:34,158 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 [2022-12-13 12:33:34,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:34,161 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:34,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-13 12:33:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:34,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 12:33:34,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:34,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 12:33:34,705 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 12:33:34,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-13 12:33:34,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:34,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2022-12-13 12:33:35,014 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 12:33:35,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-13 12:33:35,153 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 12:33:35,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-13 12:33:35,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-12-13 12:33:35,306 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-13 12:33:35,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:33:35,417 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem127#1.base| v_ArrVal_983) |c_ULTIMATE.start_main_~argv~0#1.base|) (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (_ bv1 1)))) is different from false [2022-12-13 12:33:35,435 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0) v_ArrVal_983) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-13 12:33:35,471 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_982 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_982))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_983)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-13 12:33:35,496 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_982 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_982))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_983)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-13 12:33:35,533 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_982 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_981 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_981))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_982)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_983)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))) is different from false [2022-12-13 12:33:35,578 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:33:35,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 78 [2022-12-13 12:33:35,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1801 treesize of output 1387 [2022-12-13 12:33:35,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1183 treesize of output 924 [2022-12-13 12:33:35,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 924 treesize of output 798 [2022-12-13 12:33:35,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 798 treesize of output 770 [2022-12-13 12:33:39,698 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-12-13 12:33:39,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 30 [2022-12-13 12:33:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 3 not checked. [2022-12-13 12:33:39,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:33:39,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852264409] [2022-12-13 12:33:39,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852264409] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:33:39,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 12:33:39,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2022-12-13 12:33:39,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72491875] [2022-12-13 12:33:39,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 12:33:39,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 12:33:39,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:33:39,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 12:33:39,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=143, Unknown=5, NotChecked=140, Total=342 [2022-12-13 12:33:39,707 INFO L87 Difference]: Start difference. First operand 143 states and 155 transitions. Second operand has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:41,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:33:41,604 INFO L93 Difference]: Finished difference Result 151 states and 159 transitions. [2022-12-13 12:33:41,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:33:41,604 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-12-13 12:33:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:33:41,605 INFO L225 Difference]: With dead ends: 151 [2022-12-13 12:33:41,605 INFO L226 Difference]: Without dead ends: 151 [2022-12-13 12:33:41,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 5 IntricatePredicates, 1 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=97, Invalid=224, Unknown=5, NotChecked=180, Total=506 [2022-12-13 12:33:41,605 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 192 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 340 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 12:33:41,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 327 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 340 Unchecked, 0.9s Time] [2022-12-13 12:33:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-12-13 12:33:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 142. [2022-12-13 12:33:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 119 states have (on average 1.26890756302521) internal successors, (151), 139 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2022-12-13 12:33:41,608 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 153 transitions. Word has length 71 [2022-12-13 12:33:41,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:33:41,608 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 153 transitions. [2022-12-13 12:33:41,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:33:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 153 transitions. [2022-12-13 12:33:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 12:33:41,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:33:41,609 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:33:41,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-12-13 12:33:41,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:33:41,810 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-12-13 12:33:41,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:33:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1328353214, now seen corresponding path program 1 times [2022-12-13 12:33:41,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:33:41,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866815647] [2022-12-13 12:33:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:33:41,812 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 [2022-12-13 12:33:41,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:33:41,813 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:33:41,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72782f30-18fb-4e25-b270-b2b2da91f27c/bin/uautomizer-uyxdKDjOR8/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 (17)] Waiting until timeout for monitored process [2022-12-13 12:33:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:33:42,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 12:33:42,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:33:42,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 12:33:42,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 12:33:42,446 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 12:33:42,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-13 12:33:42,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:42,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 12:33:42,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-12-13 12:33:42,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-12-13 12:33:42,757 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 12:33:42,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2022-12-13 12:33:42,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-13 12:33:43,000 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 12:33:43,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2022-12-13 12:33:43,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-13 12:33:43,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 13 [2022-12-13 12:33:43,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-12-13 12:33:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-13 12:33:43,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:33:44,221 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse2 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (and (forall ((v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem127#1.base| v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem127#1.base| v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2) (_ bv1 64) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem127#1.base| v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))) is different from false [2022-12-13 12:33:44,312 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse1 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (and (forall ((v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd .cse0 .cse1) (bvadd (_ bv1 64) .cse0 .cse1)))) (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))))))) is different from false [2022-12-13 12:33:44,432 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (and (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd .cse0 (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))) (forall ((v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 .cse3) (bvadd .cse0 (_ bv1 64) .cse3))))))) is different from false [2022-12-13 12:33:44,539 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse2 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (and (forall ((v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse1 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1099) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1100) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2) v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1100))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv1 64) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1099) .cse3 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))))) is different from false [2022-12-13 12:33:49,613 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse3 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (and (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1098 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1097 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1097))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_1100))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv1 64) (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1098) .cse1 v_ArrVal_1099) .cse2 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1098 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1097 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1097))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1098) .cse7 v_ArrVal_1099) (select (select (store .cse8 .cse7 v_ArrVal_1100) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3) v_ArrVal_1101))) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd .cse0 .cse6) (bvadd .cse0 (_ bv1 64) .cse6)))))) is different from false [2022-12-13 12:33:49,738 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:33:49,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 228 [2022-12-13 12:33:49,760 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:33:49,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 137 [2022-12-13 12:33:49,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11527 treesize of output 9466 [2022-12-13 12:33:49,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144675 treesize of output 140058 [2022-12-13 12:33:50,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140054 treesize of output 126614 [2022-12-13 12:33:50,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126614 treesize of output 120342 [2022-12-13 12:33:51,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120342 treesize of output 106902 [2022-12-13 12:33:51,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106902 treesize of output 90774 [2022-12-13 12:33:51,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90774 treesize of output 87190 [2022-12-13 12:33:52,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87190 treesize of output 74618