./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f9453cad2383b5119b308e041fed5f4a740e7abd43cb8ad7833872af20a8d57 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:43:55,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:43:55,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:43:55,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:43:55,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:43:55,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:43:55,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:43:55,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:43:55,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:43:55,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:43:55,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:43:55,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:43:55,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:43:55,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:43:55,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:43:55,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:43:55,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:43:55,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:43:55,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:43:55,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:43:55,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:43:55,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:43:55,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:43:55,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:43:55,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:43:55,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:43:55,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:43:56,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:43:56,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:43:56,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:43:56,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:43:56,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:43:56,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:43:56,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:43:56,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:43:56,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:43:56,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:43:56,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:43:56,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:43:56,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:43:56,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:43:56,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:43:56,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:43:56,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:43:56,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:43:56,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:43:56,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:43:56,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:43:56,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:43:56,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:43:56,059 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:43:56,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:43:56,061 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:43:56,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:43:56,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:43:56,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:43:56,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:43:56,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:43:56,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:43:56,063 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:43:56,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:43:56,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:43:56,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:43:56,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:43:56,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:43:56,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:43:56,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:43:56,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:43:56,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:43:56,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:43:56,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:43:56,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:43:56,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:43:56,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:43:56,067 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:43:56,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:43:56,068 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_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f9453cad2383b5119b308e041fed5f4a740e7abd43cb8ad7833872af20a8d57 [2022-11-25 17:43:56,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:43:56,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:43:56,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:43:56,444 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:43:56,444 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:43:56,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-2.i [2022-11-25 17:43:59,564 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:43:59,828 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:43:59,829 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-2.i [2022-11-25 17:43:59,840 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/data/a2f1804ed/cab60417ef644a7f8fcb1d91244475e0/FLAGad84f12dc [2022-11-25 17:43:59,856 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/data/a2f1804ed/cab60417ef644a7f8fcb1d91244475e0 [2022-11-25 17:43:59,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:43:59,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:43:59,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:43:59,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:43:59,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:43:59,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:43:59" (1/1) ... [2022-11-25 17:43:59,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ec9265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:59, skipping insertion in model container [2022-11-25 17:43:59,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:43:59" (1/1) ... [2022-11-25 17:43:59,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:43:59,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:44:00,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-2.i[22636,22649] [2022-11-25 17:44:00,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:00,366 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:44:00,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/sv-benchmarks/c/heap-manipulation/sll_to_dll_rev-2.i[22636,22649] [2022-11-25 17:44:00,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:00,486 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:44:00,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00 WrapperNode [2022-11-25 17:44:00,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:00,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:00,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:44:00,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:44:00,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,569 INFO L138 Inliner]: procedures = 129, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 200 [2022-11-25 17:44:00,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:00,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:44:00,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:44:00,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:44:00,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,639 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:44:00,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:44:00,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:44:00,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:44:00,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (1/1) ... [2022-11-25 17:44:00,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:00,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:00,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:44:00,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:44:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-11-25 17:44:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-11-25 17:44:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:44:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:44:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:44:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:44:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:44:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_prev [2022-11-25 17:44:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_prev [2022-11-25 17:44:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:44:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:44:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure chain_node [2022-11-25 17:44:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_node [2022-11-25 17:44:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:44:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_next [2022-11-25 17:44:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_next [2022-11-25 17:44:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:44:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:44:00,949 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:44:00,952 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:44:01,507 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:44:01,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:44:01,534 INFO L300 CfgBuilder]: Removed 33 assume(true) statements. [2022-11-25 17:44:01,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:01 BoogieIcfgContainer [2022-11-25 17:44:01,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:44:01,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:44:01,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:44:01,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:44:01,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:43:59" (1/3) ... [2022-11-25 17:44:01,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731f604c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:01, skipping insertion in model container [2022-11-25 17:44:01,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:00" (2/3) ... [2022-11-25 17:44:01,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731f604c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:01, skipping insertion in model container [2022-11-25 17:44:01,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:01" (3/3) ... [2022-11-25 17:44:01,552 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev-2.i [2022-11-25 17:44:01,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:44:01,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:44:01,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:44:01,653 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@301ac856, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:44:01,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:44:01,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 76 states have (on average 1.6578947368421053) internal successors, (126), 82 states have internal predecessors, (126), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-25 17:44:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:44:01,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:01,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:44:01,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:01,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:01,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1660370747, now seen corresponding path program 1 times [2022-11-25 17:44:01,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:44:01,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268058671] [2022-11-25 17:44:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:01,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:44:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:44:01,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:44:01,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268058671] [2022-11-25 17:44:01,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268058671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:44:01,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:44:01,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:44:01,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136696576] [2022-11-25 17:44:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:44:01,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:44:01,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:44:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:44:02,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:44:02,041 INFO L87 Difference]: Start difference. First operand has 96 states, 76 states have (on average 1.6578947368421053) internal successors, (126), 82 states have internal predecessors, (126), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:44:02,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:44:02,121 INFO L93 Difference]: Finished difference Result 188 states and 326 transitions. [2022-11-25 17:44:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:44:02,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 17:44:02,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:44:02,135 INFO L225 Difference]: With dead ends: 188 [2022-11-25 17:44:02,136 INFO L226 Difference]: Without dead ends: 88 [2022-11-25 17:44:02,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:44:02,151 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:44:02,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:44:02,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-25 17:44:02,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-25 17:44:02,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 75 states have internal predecessors, (83), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:44:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2022-11-25 17:44:02,218 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 16 [2022-11-25 17:44:02,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:44:02,220 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2022-11-25 17:44:02,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:44:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2022-11-25 17:44:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 17:44:02,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:02,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:44:02,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:44:02,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:02,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1299807145, now seen corresponding path program 1 times [2022-11-25 17:44:02,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:44:02,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867180096] [2022-11-25 17:44:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:02,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:44:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:04,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:44:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:04,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:44:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:44:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:44:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:44:04,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867180096] [2022-11-25 17:44:04,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867180096] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:44:04,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290724540] [2022-11-25 17:44:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:04,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:44:04,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:04,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:44:04,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:44:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:05,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-25 17:44:05,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:44:05,182 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 14 treesize of output 12 [2022-11-25 17:44:05,361 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:44:05,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:44:05,370 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 8 treesize of output 7 [2022-11-25 17:44:05,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:44:05,448 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-11-25 17:44:05,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 34 [2022-11-25 17:44:05,452 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 22 treesize of output 16 [2022-11-25 17:44:05,605 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 24 treesize of output 19 [2022-11-25 17:44:05,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-25 17:44:05,827 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_328 (Array Int Int)) (v_ArrVal_327 (Array Int Int)) (v_ArrVal_329 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (|chain_node_alloc_node_~ptr~0#1.base| Int)) (and (<= |chain_node_~node~0#1.base| |chain_node_alloc_node_~ptr~0#1.base|) (= (store (store (store |c_old(#memory_$Pointer$.base)| |chain_node_alloc_node_~ptr~0#1.base| v_ArrVal_327) |chain_node_~node~0#1.base| v_ArrVal_328) |c_chain_node_#in~ppnode#1.base| v_ArrVal_329) |c_#memory_$Pointer$.base|) (< |chain_node_alloc_node_~ptr~0#1.base| |c_#StackHeapBarrier|))) is different from true [2022-11-25 17:44:05,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:05,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:05,903 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-25 17:44:05,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 45 [2022-11-25 17:44:05,909 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 9 treesize of output 7 [2022-11-25 17:44:05,993 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 16 treesize of output 8 [2022-11-25 17:44:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-11-25 17:44:06,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:44:06,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290724540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:44:06,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:44:06,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 24 [2022-11-25 17:44:06,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136511838] [2022-11-25 17:44:06,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:44:06,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 17:44:06,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:44:06,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 17:44:06,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=479, Unknown=11, NotChecked=44, Total=600 [2022-11-25 17:44:06,187 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand has 24 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 17:44:07,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:44:07,963 INFO L93 Difference]: Finished difference Result 132 states and 163 transitions. [2022-11-25 17:44:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:44:07,964 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 40 [2022-11-25 17:44:07,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:44:07,967 INFO L225 Difference]: With dead ends: 132 [2022-11-25 17:44:07,969 INFO L226 Difference]: Without dead ends: 129 [2022-11-25 17:44:07,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=142, Invalid=973, Unknown=11, NotChecked=64, Total=1190 [2022-11-25 17:44:07,972 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 219 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:44:07,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 549 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1217 Invalid, 0 Unknown, 158 Unchecked, 1.2s Time] [2022-11-25 17:44:07,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-25 17:44:07,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 100. [2022-11-25 17:44:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 86 states have internal predecessors, (97), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:44:08,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-11-25 17:44:08,002 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 40 [2022-11-25 17:44:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:44:08,003 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-11-25 17:44:08,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 17:44:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-11-25 17:44:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:44:08,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:08,006 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:44:08,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:44:08,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:44:08,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash -727961485, now seen corresponding path program 1 times [2022-11-25 17:44:08,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:44:08,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701850554] [2022-11-25 17:44:08,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:08,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:44:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:44:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:44:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:10,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:44:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 17:44:10,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:44:10,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701850554] [2022-11-25 17:44:10,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701850554] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:44:10,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537060886] [2022-11-25 17:44:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:10,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:44:10,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:10,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:44:10,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:44:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:10,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 85 conjunts are in the unsatisfiable core [2022-11-25 17:44:10,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:44:10,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-25 17:44:10,652 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:44:10,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:44:10,661 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 8 treesize of output 7 [2022-11-25 17:44:10,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:44:10,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 19 [2022-11-25 17:44:10,713 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 9 treesize of output 7 [2022-11-25 17:44:10,930 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-25 17:44:10,931 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 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-25 17:44:10,998 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:44:10,999 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 20 treesize of output 8 [2022-11-25 17:44:11,138 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_645 (Array Int Int)) (v_ArrVal_644 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (|chain_node_alloc_node_~ptr~0#1.base| Int) (v_ArrVal_643 (Array Int Int))) (and (<= (+ 1 |chain_node_alloc_node_~ptr~0#1.base|) |c_#StackHeapBarrier|) (<= |chain_node_~node~0#1.base| |chain_node_alloc_node_~ptr~0#1.base|) (= (store (store (store |c_old(#memory_$Pointer$.base)| |chain_node_alloc_node_~ptr~0#1.base| v_ArrVal_643) |chain_node_~node~0#1.base| v_ArrVal_644) |c_chain_node_#in~ppnode#1.base| v_ArrVal_645) |c_#memory_$Pointer$.base|))) is different from true [2022-11-25 17:44:11,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:11,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:11,248 INFO L321 Elim1Store]: treesize reduction 43, result has 47.6 percent of original size [2022-11-25 17:44:11,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 57 [2022-11-25 17:44:11,272 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 6 treesize of output 4 [2022-11-25 17:44:11,372 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 [2022-11-25 17:44:11,432 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 12 treesize of output 8 [2022-11-25 17:44:11,579 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_649 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_650 (Array Int Int))) (and (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_649) |c_chain_node_#in~ppnode#1.base| (store (select (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_650) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| |chain_node_~node~0#1.base|)) |c_#memory_$Pointer$.base|) (not (= |chain_node_~node~0#1.base| 0)))) is different from true [2022-11-25 17:44:11,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:11,663 INFO L321 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-11-25 17:44:11,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 101 [2022-11-25 17:44:11,674 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 8 treesize of output 7 [2022-11-25 17:44:11,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:44:11,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:44:11,830 INFO L321 Elim1Store]: treesize reduction 73, result has 19.8 percent of original size [2022-11-25 17:44:11,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 64 [2022-11-25 17:44:11,840 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 29 treesize of output 21 [2022-11-25 17:44:11,891 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-25 17:44:12,160 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:44:12,161 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 62 treesize of output 42 [2022-11-25 17:44:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2022-11-25 17:44:12,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:44:12,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537060886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:44:12,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:44:12,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 29 [2022-11-25 17:44:12,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666471107] [2022-11-25 17:44:12,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:44:12,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 17:44:12,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:44:12,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 17:44:12,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=671, Unknown=5, NotChecked=106, Total=870 [2022-11-25 17:44:12,402 INFO L87 Difference]: Start difference. First operand 100 states and 122 transitions. Second operand has 29 states, 23 states have (on average 2.260869565217391) internal successors, (52), 26 states have internal predecessors, (52), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:44:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:44:14,675 INFO L93 Difference]: Finished difference Result 132 states and 163 transitions. [2022-11-25 17:44:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:44:14,676 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 23 states have (on average 2.260869565217391) internal successors, (52), 26 states have internal predecessors, (52), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 42 [2022-11-25 17:44:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:44:14,678 INFO L225 Difference]: With dead ends: 132 [2022-11-25 17:44:14,678 INFO L226 Difference]: Without dead ends: 129 [2022-11-25 17:44:14,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=197, Invalid=1446, Unknown=5, NotChecked=158, Total=1806 [2022-11-25 17:44:14,680 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 149 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 54 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 256 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:44:14,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 787 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1520 Invalid, 5 Unknown, 256 Unchecked, 1.5s Time] [2022-11-25 17:44:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-25 17:44:14,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 100. [2022-11-25 17:44:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 86 states have internal predecessors, (96), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:44:14,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 121 transitions. [2022-11-25 17:44:14,701 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 121 transitions. Word has length 42 [2022-11-25 17:44:14,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:44:14,702 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 121 transitions. [2022-11-25 17:44:14,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 23 states have (on average 2.260869565217391) internal successors, (52), 26 states have internal predecessors, (52), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:44:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 121 transitions. [2022-11-25 17:44:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 17:44:14,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:14,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:44:14,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:44:14,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:44:14,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1343975071, now seen corresponding path program 1 times [2022-11-25 17:44:14,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:44:14,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371902105] [2022-11-25 17:44:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:44:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:44:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:44:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:44:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:44:20,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:44:20,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371902105] [2022-11-25 17:44:20,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371902105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:44:20,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665332128] [2022-11-25 17:44:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:20,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:44:20,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:20,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:44:20,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:44:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:20,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 139 conjunts are in the unsatisfiable core [2022-11-25 17:44:20,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:44:20,350 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 44 treesize of output 42 [2022-11-25 17:44:20,561 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:44:20,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:44:20,570 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 8 treesize of output 7 [2022-11-25 17:44:20,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:44:20,628 INFO L321 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2022-11-25 17:44:20,629 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 66 treesize of output 26 [2022-11-25 17:44:20,632 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 21 treesize of output 15 [2022-11-25 17:44:21,072 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-25 17:44:21,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 70 [2022-11-25 17:44:21,098 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 9 treesize of output 7 [2022-11-25 17:44:21,185 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 8 treesize of output 4 [2022-11-25 17:44:21,241 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 6 treesize of output 5 [2022-11-25 17:44:21,511 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:44:21,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:44:21,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:44:21,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:44:21,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-11-25 17:44:21,572 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 9 treesize of output 7 [2022-11-25 17:44:21,623 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 26 treesize of output 22 [2022-11-25 17:44:21,639 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-25 17:44:21,640 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 29 [2022-11-25 17:44:21,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:21,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2022-11-25 17:44:21,875 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 13 [2022-11-25 17:44:21,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-25 17:44:22,130 INFO L321 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-25 17:44:22,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 45 [2022-11-25 17:44:22,162 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-25 17:44:22,163 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 32 treesize of output 27 [2022-11-25 17:44:22,314 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-25 17:44:22,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 23 [2022-11-25 17:44:22,324 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:44:22,325 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 11 treesize of output 3 [2022-11-25 17:44:22,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-25 17:44:22,638 WARN L859 $PredicateComparison]: unable to prove that (exists ((|chain_node_~node~0#1.base| Int) (v_ArrVal_982 (Array Int Int)) (|chain_node_~node~0#1.offset| Int) (v_ArrVal_983 (Array Int Int))) (and (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| (store v_ArrVal_982 |chain_node_~node~0#1.offset| (select (select (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_982) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))))) (store .cse0 |c_chain_node_#in~ppnode#1.base| (store (select .cse0 |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| |chain_node_~node~0#1.base|))) |c_#memory_$Pointer$.base|) (= (let ((.cse1 (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| (store v_ArrVal_983 |chain_node_~node~0#1.offset| (select (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_983) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))))) (store .cse1 |c_chain_node_#in~ppnode#1.base| (store (select .cse1 |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| |chain_node_~node~0#1.offset|))) |c_#memory_$Pointer$.offset|) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:44:22,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:22,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:22,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:22,802 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-25 17:44:22,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 57 [2022-11-25 17:44:22,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:22,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:22,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:22,924 INFO L321 Elim1Store]: treesize reduction 67, result has 25.6 percent of original size [2022-11-25 17:44:22,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 88 [2022-11-25 17:44:22,950 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 10 treesize of output 9 [2022-11-25 17:44:22,975 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 10 treesize of output 9 [2022-11-25 17:44:22,994 INFO L321 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2022-11-25 17:44:22,995 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 [2022-11-25 17:44:23,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 48 [2022-11-25 17:44:23,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2022-11-25 17:44:23,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2022-11-25 17:44:23,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 35 [2022-11-25 17:44:24,149 INFO L321 Elim1Store]: treesize reduction 16, result has 82.8 percent of original size [2022-11-25 17:44:24,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 215 treesize of output 241 [2022-11-25 17:44:28,325 INFO L321 Elim1Store]: treesize reduction 80, result has 79.8 percent of original size [2022-11-25 17:44:28,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 190 treesize of output 406 [2022-11-25 17:44:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 2 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-25 17:44:35,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:44:36,038 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_chain_node_~node~0#1.offset_10| Int) (|v_chain_node_~node~0#1.base_10| Int) (v_ArrVal_1013 (Array Int Int)) (v_ArrVal_1012 (Array Int Int))) (or (not (= (select |c_#valid| |v_chain_node_~node~0#1.base_10|) 0)) (not (= (select (let ((.cse0 (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_chain_node_~node~0#1.base_10| (store v_ArrVal_1012 |v_chain_node_~node~0#1.offset_10| (select (select (store |c_#memory_$Pointer$.base| |v_chain_node_~node~0#1.base_10| v_ArrVal_1012) |c_ULTIMATE.start_create_sll_~#list~0#1.base|) |c_ULTIMATE.start_create_sll_~#list~0#1.offset|))))) (store .cse1 |c_ULTIMATE.start_create_sll_~#list~0#1.base| (store (select .cse1 |c_ULTIMATE.start_create_sll_~#list~0#1.base|) |c_ULTIMATE.start_create_sll_~#list~0#1.offset| |v_chain_node_~node~0#1.base_10|))))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#p1~0#1.base|) |c_ULTIMATE.start_main_~#p1~0#1.offset|))) (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_chain_node_~node~0#1.base_10| (store v_ArrVal_1013 |v_chain_node_~node~0#1.offset_10| (select (select (store |c_#memory_$Pointer$.offset| |v_chain_node_~node~0#1.base_10| v_ArrVal_1013) |c_ULTIMATE.start_create_sll_~#list~0#1.base|) |c_ULTIMATE.start_create_sll_~#list~0#1.offset|))))) (store .cse2 |c_ULTIMATE.start_create_sll_~#list~0#1.base| (store (select .cse2 |c_ULTIMATE.start_create_sll_~#list~0#1.base|) |c_ULTIMATE.start_create_sll_~#list~0#1.offset| |v_chain_node_~node~0#1.offset_10|))) |c_ULTIMATE.start_main_~#p1~0#1.base|) |c_ULTIMATE.start_main_~#p1~0#1.offset|)) 0)) (not (< |v_chain_node_~node~0#1.base_10| |c_#StackHeapBarrier|)))) is different from false [2022-11-25 17:44:36,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665332128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:44:36,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:44:36,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 40 [2022-11-25 17:44:36,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659447648] [2022-11-25 17:44:36,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:44:36,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-25 17:44:36,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:44:36,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-25 17:44:36,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1694, Unknown=7, NotChecked=166, Total=1980 [2022-11-25 17:44:36,045 INFO L87 Difference]: Start difference. First operand 100 states and 121 transitions. Second operand has 40 states, 32 states have (on average 2.1875) internal successors, (70), 35 states have internal predecessors, (70), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:44:50,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:44:50,482 INFO L93 Difference]: Finished difference Result 201 states and 250 transitions. [2022-11-25 17:44:50,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 17:44:50,483 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 32 states have (on average 2.1875) internal successors, (70), 35 states have internal predecessors, (70), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 46 [2022-11-25 17:44:50,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:44:50,485 INFO L225 Difference]: With dead ends: 201 [2022-11-25 17:44:50,486 INFO L226 Difference]: Without dead ends: 198 [2022-11-25 17:44:50,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=365, Invalid=4042, Unknown=23, NotChecked=262, Total=4692 [2022-11-25 17:44:50,489 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 344 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 2577 mSolverCounterSat, 127 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2577 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 194 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:44:50,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1021 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2577 Invalid, 28 Unknown, 194 Unchecked, 5.3s Time] [2022-11-25 17:44:50,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-25 17:44:50,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 102. [2022-11-25 17:44:50,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2375) internal successors, (99), 88 states have internal predecessors, (99), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:44:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 124 transitions. [2022-11-25 17:44:50,517 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 124 transitions. Word has length 46 [2022-11-25 17:44:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:44:50,518 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 124 transitions. [2022-11-25 17:44:50,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 32 states have (on average 2.1875) internal successors, (70), 35 states have internal predecessors, (70), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:44:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 124 transitions. [2022-11-25 17:44:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 17:44:50,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:50,520 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:44:50,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 17:44:50,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:44:50,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:50,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:50,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2055778686, now seen corresponding path program 1 times [2022-11-25 17:44:50,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:44:50,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934626149] [2022-11-25 17:44:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:50,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:44:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:44:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:52,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:44:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:44:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:44:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:44:55,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:44:55,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934626149] [2022-11-25 17:44:55,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934626149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:44:55,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477975104] [2022-11-25 17:44:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:55,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:44:55,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:55,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:44:55,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:44:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:55,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-25 17:44:55,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:44:55,921 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 14 treesize of output 12 [2022-11-25 17:44:56,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:44:56,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:56,134 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 17 [2022-11-25 17:44:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:44:56,146 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 17 [2022-11-25 17:44:56,259 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-11-25 17:44:56,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 61 [2022-11-25 17:44:56,267 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 17:44:56,309 INFO L321 Elim1Store]: treesize reduction 17, result has 56.4 percent of original size [2022-11-25 17:44:56,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 71 [2022-11-25 17:44:56,359 INFO L321 Elim1Store]: treesize reduction 47, result has 33.8 percent of original size [2022-11-25 17:44:56,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 85 [2022-11-25 17:44:56,404 INFO L321 Elim1Store]: treesize reduction 46, result has 34.3 percent of original size [2022-11-25 17:44:56,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 84 [2022-11-25 17:44:56,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:44:56,483 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 0 case distinctions, treesize of input 21 treesize of output 10 [2022-11-25 17:44:56,519 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 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-25 17:44:56,527 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 5 treesize of output 3 [2022-11-25 17:44:56,559 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 20 treesize of output 28 [2022-11-25 17:44:56,597 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 20 treesize of output 28 [2022-11-25 17:44:56,640 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-11-25 17:44:56,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 91 [2022-11-25 17:44:56,792 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:44:56,793 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 36 treesize of output 35 [2022-11-25 17:44:56,859 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2022-11-25 17:44:56,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 125 [2022-11-25 17:44:56,911 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-25 17:44:56,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 85 [2022-11-25 17:44:56,976 INFO L321 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2022-11-25 17:44:56,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 88 treesize of output 103 [2022-11-25 17:44:57,010 INFO L321 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2022-11-25 17:44:57,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-25 17:45:00,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-25 17:45:00,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 46 [2022-11-25 17:45:00,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:45:00,456 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 68 treesize of output 54 [2022-11-25 17:45:00,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 10 [2022-11-25 17:45:00,629 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:45:00,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 18 [2022-11-25 17:45:00,635 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 5 treesize of output 3 [2022-11-25 17:45:00,871 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1337 (Array Int Int)) (v_ArrVal_1335 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_1340 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_1340) |c_chain_node_#in~ppnode#1.base| v_ArrVal_1337)) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.offset| (let ((.cse0 (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| (store v_ArrVal_1335 0 (select (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_1335) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))))) (store .cse0 |c_chain_node_#in~ppnode#1.base| (store (select .cse0 |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0)))) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:45:00,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,945 INFO L321 Elim1Store]: treesize reduction 47, result has 9.6 percent of original size [2022-11-25 17:45:00,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 68 [2022-11-25 17:45:00,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:00,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 48 [2022-11-25 17:45:00,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2022-11-25 17:45:00,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:45:00,993 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 49 treesize of output 37 [2022-11-25 17:45:01,007 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-25 17:45:01,008 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 15 treesize of output 15 [2022-11-25 17:45:02,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:45:02,317 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:45:02,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 47 [2022-11-25 17:45:02,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:02,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:02,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:02,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:02,338 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:45:02,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 24 [2022-11-25 17:45:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-11-25 17:45:02,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:45:02,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477975104] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:02,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:45:02,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2022-11-25 17:45:02,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461770887] [2022-11-25 17:45:02,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:45:02,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:45:02,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:02,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:45:02,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=728, Unknown=1, NotChecked=54, Total=870 [2022-11-25 17:45:02,876 INFO L87 Difference]: Start difference. First operand 102 states and 124 transitions. Second operand has 28 states, 24 states have (on average 3.125) internal successors, (75), 26 states have internal predecessors, (75), 7 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-25 17:45:08,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:08,219 INFO L93 Difference]: Finished difference Result 200 states and 243 transitions. [2022-11-25 17:45:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:45:08,220 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 3.125) internal successors, (75), 26 states have internal predecessors, (75), 7 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 50 [2022-11-25 17:45:08,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:08,222 INFO L225 Difference]: With dead ends: 200 [2022-11-25 17:45:08,222 INFO L226 Difference]: Without dead ends: 197 [2022-11-25 17:45:08,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=217, Invalid=1676, Unknown=3, NotChecked=84, Total=1980 [2022-11-25 17:45:08,225 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 146 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 164 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:08,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 676 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1688 Invalid, 0 Unknown, 164 Unchecked, 3.3s Time] [2022-11-25 17:45:08,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-25 17:45:08,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 127. [2022-11-25 17:45:08,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 102 states have (on average 1.2254901960784315) internal successors, (125), 110 states have internal predecessors, (125), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-25 17:45:08,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 154 transitions. [2022-11-25 17:45:08,271 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 154 transitions. Word has length 50 [2022-11-25 17:45:08,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:08,272 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 154 transitions. [2022-11-25 17:45:08,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 3.125) internal successors, (75), 26 states have internal predecessors, (75), 7 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-25 17:45:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 154 transitions. [2022-11-25 17:45:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 17:45:08,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:08,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:08,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 17:45:08,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:08,480 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:45:08,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1969592115, now seen corresponding path program 1 times [2022-11-25 17:45:08,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:08,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367350505] [2022-11-25 17:45:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:08,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:11,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:45:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:13,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:45:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:45:15,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:15,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367350505] [2022-11-25 17:45:15,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367350505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:15,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247858899] [2022-11-25 17:45:15,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:15,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:15,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:15,632 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:15,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:45:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:15,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 185 conjunts are in the unsatisfiable core [2022-11-25 17:45:15,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:15,938 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:45:15,938 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 23 treesize of output 19 [2022-11-25 17:45:16,208 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:45:16,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:45:16,240 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:45:16,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:45:16,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:45:16,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:45:16,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:45:16,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:45:16,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:45:16,357 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 0 case distinctions, treesize of input 31 treesize of output 5 [2022-11-25 17:45:16,362 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 5 treesize of output 3 [2022-11-25 17:45:16,374 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 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-25 17:45:16,377 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 9 treesize of output 7 [2022-11-25 17:45:16,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:45:16,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2022-11-25 17:45:16,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-25 17:45:16,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2022-11-25 17:45:16,960 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 6 treesize of output 5 [2022-11-25 17:45:17,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2022-11-25 17:45:17,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2022-11-25 17:45:17,471 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 28 treesize of output 23 [2022-11-25 17:45:17,480 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 16 treesize of output 15 [2022-11-25 17:45:17,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-25 17:45:17,519 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 16 treesize of output 15 [2022-11-25 17:45:17,908 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-25 17:45:17,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 58 [2022-11-25 17:45:17,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:17,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 42 [2022-11-25 17:45:18,120 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-25 17:45:18,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 33 [2022-11-25 17:45:18,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-25 17:45:18,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-25 17:45:18,502 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1697 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_1695 (Array Int Int)) (v_ArrVal_1694 (Array Int Int)) (v_ArrVal_1692 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| (store v_ArrVal_1692 0 (select (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_1692) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) |c_chain_node_#in~ppnode#1.base| (store (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_1694) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0))) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_1697) |c_chain_node_#in~ppnode#1.base| v_ArrVal_1695) |c_#memory_$Pointer$.base|) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:45:18,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,581 INFO L321 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2022-11-25 17:45:18,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 95 treesize of output 92 [2022-11-25 17:45:18,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:18,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2022-11-25 17:45:18,621 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 70 treesize of output 54 [2022-11-25 17:45:18,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-25 17:45:18,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:45:18,660 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-25 17:45:18,660 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 15 treesize of output 15 [2022-11-25 17:45:20,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:20,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:20,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:20,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:20,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:20,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:20,468 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:45:20,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 39 [2022-11-25 17:45:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2022-11-25 17:45:20,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:45:21,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247858899] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:21,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:45:21,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23] total 41 [2022-11-25 17:45:21,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737744933] [2022-11-25 17:45:21,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:45:21,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-25 17:45:21,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:21,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-25 17:45:21,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1593, Unknown=1, NotChecked=80, Total=1806 [2022-11-25 17:45:21,462 INFO L87 Difference]: Start difference. First operand 127 states and 154 transitions. Second operand has 41 states, 34 states have (on average 2.411764705882353) internal successors, (82), 36 states have internal predecessors, (82), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:45:27,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:27,576 INFO L93 Difference]: Finished difference Result 251 states and 308 transitions. [2022-11-25 17:45:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:45:27,577 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 2.411764705882353) internal successors, (82), 36 states have internal predecessors, (82), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 50 [2022-11-25 17:45:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:27,579 INFO L225 Difference]: With dead ends: 251 [2022-11-25 17:45:27,579 INFO L226 Difference]: Without dead ends: 181 [2022-11-25 17:45:27,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=265, Invalid=2818, Unknown=1, NotChecked=108, Total=3192 [2022-11-25 17:45:27,581 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 183 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 75 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 170 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:27,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 860 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2008 Invalid, 1 Unknown, 170 Unchecked, 4.2s Time] [2022-11-25 17:45:27,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-25 17:45:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 148. [2022-11-25 17:45:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 128 states have internal predecessors, (144), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 17:45:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 179 transitions. [2022-11-25 17:45:27,630 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 179 transitions. Word has length 50 [2022-11-25 17:45:27,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:27,631 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 179 transitions. [2022-11-25 17:45:27,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 2.411764705882353) internal successors, (82), 36 states have internal predecessors, (82), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:45:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 179 transitions. [2022-11-25 17:45:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 17:45:27,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:27,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:27,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 17:45:27,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:27,839 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:45:27,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1808852267, now seen corresponding path program 1 times [2022-11-25 17:45:27,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:27,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480030474] [2022-11-25 17:45:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:27,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:45:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:45:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:36,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:45:37,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:37,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480030474] [2022-11-25 17:45:37,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480030474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:37,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474141003] [2022-11-25 17:45:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:37,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:37,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:37,182 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:37,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:45:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:37,490 WARN L261 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 231 conjunts are in the unsatisfiable core [2022-11-25 17:45:37,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:37,549 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-25 17:45:37,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 102 treesize of output 99 [2022-11-25 17:45:37,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-25 17:45:37,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:37,902 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 17 [2022-11-25 17:45:37,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:37,923 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 17 [2022-11-25 17:45:38,062 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-11-25 17:45:38,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 61 [2022-11-25 17:45:38,097 INFO L321 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-25 17:45:38,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 73 [2022-11-25 17:45:38,146 INFO L321 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2022-11-25 17:45:38,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 45 [2022-11-25 17:45:38,160 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 8 treesize of output 7 [2022-11-25 17:45:38,211 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 0 case distinctions, treesize of input 21 treesize of output 10 [2022-11-25 17:45:38,229 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 20 treesize of output 28 [2022-11-25 17:45:38,277 INFO L321 Elim1Store]: treesize reduction 14, result has 56.3 percent of original size [2022-11-25 17:45:38,278 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 104 [2022-11-25 17:45:38,375 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:45:38,375 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 85 treesize of output 87 [2022-11-25 17:45:38,829 INFO L321 Elim1Store]: treesize reduction 264, result has 13.4 percent of original size [2022-11-25 17:45:38,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 168 [2022-11-25 17:45:38,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:45:38,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 20 [2022-11-25 17:45:39,362 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:45:39,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 59 [2022-11-25 17:45:39,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-11-25 17:45:39,392 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 0 case distinctions, treesize of input 87 treesize of output 63 [2022-11-25 17:45:39,667 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:45:39,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 38 [2022-11-25 17:45:39,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-25 17:45:39,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-25 17:45:40,054 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2045 Int) (v_ArrVal_2049 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_2046 (Array Int Int)) (v_ArrVal_2056 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| (store v_ArrVal_2046 0 (select (select (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_2046) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) |c_chain_node_#in~ppnode#1.base| v_ArrVal_2050)) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= |c_#valid| (store |c_old(#valid)| |chain_node_~node~0#1.base| v_ArrVal_2045)) (= |c_#memory_$Pointer$.offset| (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2049) |c_chain_node_#in~ppnode#1.base| (store (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2056) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0))) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:45:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,127 INFO L321 Elim1Store]: treesize reduction 52, result has 8.8 percent of original size [2022-11-25 17:45:40,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 83 [2022-11-25 17:45:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2022-11-25 17:45:40,158 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 69 treesize of output 51 [2022-11-25 17:45:40,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:45:40,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,214 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 17:45:40,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 57 [2022-11-25 17:45:40,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2022-11-25 17:45:40,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 42 [2022-11-25 17:45:40,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:40,843 INFO L321 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2022-11-25 17:45:40,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 84 [2022-11-25 17:45:41,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,190 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:45:41,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 42 [2022-11-25 17:45:41,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-25 17:45:41,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-25 17:45:41,514 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2060 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_2068 (Array Int Int)) (v_ArrVal_2066 (Array Int Int)) (v_ArrVal_2065 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| (store v_ArrVal_2060 0 (select (select (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_2060) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) |c_chain_node_#in~ppnode#1.base| v_ArrVal_2066)) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2068) |c_chain_node_#in~ppnode#1.base| (store (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2065) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0)) |c_#memory_$Pointer$.offset|) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:45:41,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 55 [2022-11-25 17:45:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,652 INFO L321 Elim1Store]: treesize reduction 74, result has 16.9 percent of original size [2022-11-25 17:45:41,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 99 treesize of output 98 [2022-11-25 17:45:41,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:41,701 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-25 17:45:41,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 28 [2022-11-25 17:45:41,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2022-11-25 17:45:41,727 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 10 treesize of output 9 [2022-11-25 17:45:41,738 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 9 treesize of output 7 [2022-11-25 17:45:41,749 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 9 treesize of output 7 [2022-11-25 17:45:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:44,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:45:44,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:45:44,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:45:44,299 INFO L321 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-25 17:45:44,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 125 treesize of output 62 [2022-11-25 17:45:44,315 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:45:44,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 24 [2022-11-25 17:45:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 3 times theorem prover too weak. 1 trivial. 6 not checked. [2022-11-25 17:45:44,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:46:07,210 WARN L233 SmtUtils]: Spent 10.26s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:46:17,652 WARN L233 SmtUtils]: Spent 10.18s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:46:28,085 WARN L233 SmtUtils]: Spent 10.23s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:46:29,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474141003] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:46:29,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:46:29,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 28] total 49 [2022-11-25 17:46:29,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215113591] [2022-11-25 17:46:29,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:46:29,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-25 17:46:29,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:29,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-25 17:46:29,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2852, Unknown=7, NotChecked=218, Total=3306 [2022-11-25 17:46:29,275 INFO L87 Difference]: Start difference. First operand 148 states and 179 transitions. Second operand has 49 states, 41 states have (on average 2.073170731707317) internal successors, (85), 45 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:46:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:46,106 INFO L93 Difference]: Finished difference Result 322 states and 399 transitions. [2022-11-25 17:46:46,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-25 17:46:46,106 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 41 states have (on average 2.073170731707317) internal successors, (85), 45 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 53 [2022-11-25 17:46:46,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:46,109 INFO L225 Difference]: With dead ends: 322 [2022-11-25 17:46:46,109 INFO L226 Difference]: Without dead ends: 319 [2022-11-25 17:46:46,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1372 ImplicationChecksByTransitivity, 58.5s TimeCoverageRelationStatistics Valid=634, Invalid=6677, Unknown=7, NotChecked=338, Total=7656 [2022-11-25 17:46:46,112 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 596 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 3752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 382 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:46,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 987 Invalid, 3752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 3138 Invalid, 0 Unknown, 382 Unchecked, 8.2s Time] [2022-11-25 17:46:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-25 17:46:46,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 147. [2022-11-25 17:46:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 119 states have (on average 1.2016806722689075) internal successors, (143), 127 states have internal predecessors, (143), 21 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 17:46:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 177 transitions. [2022-11-25 17:46:46,186 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 177 transitions. Word has length 53 [2022-11-25 17:46:46,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:46,186 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 177 transitions. [2022-11-25 17:46:46,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 41 states have (on average 2.073170731707317) internal successors, (85), 45 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:46:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 177 transitions. [2022-11-25 17:46:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 17:46:46,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:46,189 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:46,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 17:46:46,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:46:46,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:46,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash 992893756, now seen corresponding path program 1 times [2022-11-25 17:46:46,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:46,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606518995] [2022-11-25 17:46:46,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:46,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:49,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:46:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:49,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:46:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:46:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 17:46:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:46:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:46:54,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:54,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606518995] [2022-11-25 17:46:54,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606518995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:46:54,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065056385] [2022-11-25 17:46:54,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:46:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:46:54,934 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:46:54,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:46:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:55,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 171 conjunts are in the unsatisfiable core [2022-11-25 17:46:55,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:46:55,276 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 14 treesize of output 12 [2022-11-25 17:46:55,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:46:55,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:55,526 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 17 [2022-11-25 17:46:55,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:55,535 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 17 [2022-11-25 17:46:55,664 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-11-25 17:46:55,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 61 [2022-11-25 17:46:55,703 INFO L321 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-25 17:46:55,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 73 [2022-11-25 17:46:55,754 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-11-25 17:46:55,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 61 [2022-11-25 17:46:55,795 INFO L321 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-25 17:46:55,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 73 [2022-11-25 17:46:55,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:46:55,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:46:55,873 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 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-25 17:46:55,879 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 5 treesize of output 3 [2022-11-25 17:46:55,906 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 20 treesize of output 28 [2022-11-25 17:46:55,957 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-25 17:46:55,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 70 [2022-11-25 17:46:56,028 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 0 case distinctions, treesize of input 21 treesize of output 10 [2022-11-25 17:46:56,082 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 27 treesize of output 24 [2022-11-25 17:46:56,143 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:46:56,144 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 11 treesize of output 7 [2022-11-25 17:46:56,186 INFO L321 Elim1Store]: treesize reduction 65, result has 7.1 percent of original size [2022-11-25 17:46:56,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 101 treesize of output 152 [2022-11-25 17:46:56,412 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-25 17:46:56,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 88 treesize of output 106 [2022-11-25 17:46:56,478 INFO L321 Elim1Store]: treesize reduction 53, result has 37.6 percent of original size [2022-11-25 17:46:56,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 79 treesize of output 127 [2022-11-25 17:46:56,516 INFO L321 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2022-11-25 17:46:56,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 60 [2022-11-25 17:46:56,579 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 74 treesize of output 58 [2022-11-25 17:46:56,623 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 98 treesize of output 78 [2022-11-25 17:46:57,015 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:46:57,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 43 [2022-11-25 17:46:57,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-25 17:46:57,160 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:46:57,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 25 [2022-11-25 17:46:57,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-25 17:46:57,174 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 5 treesize of output 3 [2022-11-25 17:46:57,461 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2506 (Array Int Int)) (v_ArrVal_2505 (Array Int Int)) (v_ArrVal_2503 (Array Int Int)) (v_ArrVal_2501 (Array Int Int)) (|chain_node_~node~0#1.base| Int)) (and (= (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2505) |c_chain_node_#in~ppnode#1.base| (store (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2503) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0)) |c_#memory_$Pointer$.offset|) (= (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_2501) |c_chain_node_#in~ppnode#1.base| v_ArrVal_2506) |c_#memory_$Pointer$.base|) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= |c_#valid| (store |c_old(#valid)| |chain_node_~node~0#1.base| 1)) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:46:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2022-11-25 17:46:57,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-25 17:46:57,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,555 INFO L321 Elim1Store]: treesize reduction 47, result has 9.6 percent of original size [2022-11-25 17:46:57,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 59 [2022-11-25 17:46:57,568 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 9 treesize of output 7 [2022-11-25 17:46:57,594 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-25 17:46:57,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-25 17:46:57,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:46:57,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 26 [2022-11-25 17:46:57,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:57,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-25 17:46:57,873 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 17:46:58,101 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2511 (Array Int Int)) (v_ArrVal_2510 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_2507 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| (store v_ArrVal_2507 0 (select (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2507) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) |c_chain_node_#in~ppnode#1.base| v_ArrVal_2511)) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_2510) |c_chain_node_#in~ppnode#1.base| v_ArrVal_2513) |c_#memory_$Pointer$.base|) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:46:58,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-11-25 17:46:58,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:58,182 INFO L321 Elim1Store]: treesize reduction 39, result has 11.4 percent of original size [2022-11-25 17:46:58,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 67 [2022-11-25 17:46:58,211 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-25 17:46:58,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-25 17:46:58,217 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 16 treesize of output 12 [2022-11-25 17:46:58,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:46:59,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:46:59,126 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:46:59,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 42 [2022-11-25 17:46:59,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:59,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:46:59,139 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:46:59,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 21 [2022-11-25 17:46:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2022-11-25 17:46:59,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:46:59,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065056385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:46:59,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:46:59,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 36 [2022-11-25 17:46:59,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547899354] [2022-11-25 17:46:59,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:46:59,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-25 17:46:59,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:59,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-25 17:46:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1132, Unknown=3, NotChecked=138, Total=1406 [2022-11-25 17:46:59,699 INFO L87 Difference]: Start difference. First operand 147 states and 177 transitions. Second operand has 36 states, 32 states have (on average 2.78125) internal successors, (89), 34 states have internal predecessors, (89), 9 states have call successors, (11), 5 states have call predecessors, (11), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-25 17:47:06,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:06,284 INFO L93 Difference]: Finished difference Result 211 states and 253 transitions. [2022-11-25 17:47:06,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:47:06,286 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 32 states have (on average 2.78125) internal successors, (89), 34 states have internal predecessors, (89), 9 states have call successors, (11), 5 states have call predecessors, (11), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 59 [2022-11-25 17:47:06,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:06,287 INFO L225 Difference]: With dead ends: 211 [2022-11-25 17:47:06,287 INFO L226 Difference]: Without dead ends: 208 [2022-11-25 17:47:06,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=250, Invalid=1915, Unknown=5, NotChecked=182, Total=2352 [2022-11-25 17:47:06,289 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 161 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1642 mSolverCounterSat, 62 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1642 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 278 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:06,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 613 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1642 Invalid, 4 Unknown, 278 Unchecked, 3.4s Time] [2022-11-25 17:47:06,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-25 17:47:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 121. [2022-11-25 17:47:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 97 states have (on average 1.1958762886597938) internal successors, (116), 104 states have internal predecessors, (116), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 17:47:06,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 145 transitions. [2022-11-25 17:47:06,347 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 145 transitions. Word has length 59 [2022-11-25 17:47:06,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:06,348 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 145 transitions. [2022-11-25 17:47:06,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 32 states have (on average 2.78125) internal successors, (89), 34 states have internal predecessors, (89), 9 states have call successors, (11), 5 states have call predecessors, (11), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-25 17:47:06,348 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 145 transitions. [2022-11-25 17:47:06,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 17:47:06,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:06,350 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1] [2022-11-25 17:47:06,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:06,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 17:47:06,557 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:47:06,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:06,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1079080327, now seen corresponding path program 1 times [2022-11-25 17:47:06,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:06,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771701323] [2022-11-25 17:47:06,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:06,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:47:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:47:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:47:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 17:47:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:47:17,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:17,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771701323] [2022-11-25 17:47:17,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771701323] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:47:17,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915643847] [2022-11-25 17:47:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:17,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:47:17,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:17,131 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:47:17,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:47:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:17,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 235 conjunts are in the unsatisfiable core [2022-11-25 17:47:17,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:17,511 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-25 17:47:17,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 34 [2022-11-25 17:47:17,665 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 5 treesize of output 3 [2022-11-25 17:47:17,946 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:47:17,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:47:17,978 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:47:17,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:47:17,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:47:17,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:47:18,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:47:18,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:47:18,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 38 treesize of output 11 [2022-11-25 17:47:18,057 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 5 treesize of output 3 [2022-11-25 17:47:18,092 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 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-25 17:47:18,095 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 9 treesize of output 7 [2022-11-25 17:47:18,298 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-25 17:47:18,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 68 [2022-11-25 17:47:18,364 INFO L321 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2022-11-25 17:47:18,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 12 [2022-11-25 17:47:18,906 INFO L321 Elim1Store]: treesize reduction 23, result has 43.9 percent of original size [2022-11-25 17:47:18,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 90 [2022-11-25 17:47:18,944 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 9 treesize of output 7 [2022-11-25 17:47:18,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:47:19,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:47:19,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-25 17:47:19,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2022-11-25 17:47:19,286 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 5 treesize of output 3 [2022-11-25 17:47:19,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:19,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:19,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:19,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2022-11-25 17:47:19,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:19,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:19,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:19,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2022-11-25 17:47:20,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-25 17:47:20,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2022-11-25 17:47:20,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-25 17:47:20,063 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 16 treesize of output 15 [2022-11-25 17:47:20,073 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 16 treesize of output 15 [2022-11-25 17:47:20,426 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-25 17:47:20,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 54 [2022-11-25 17:47:20,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 42 [2022-11-25 17:47:20,662 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-25 17:47:20,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 36 [2022-11-25 17:47:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-25 17:47:20,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:20,688 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 17:47:21,054 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2948 Int) (v_ArrVal_2955 (Array Int Int)) (v_ArrVal_2953 (Array Int Int)) (v_ArrVal_2952 (Array Int Int)) (v_ArrVal_2951 (Array Int Int)) (|chain_node_~node~0#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2953) |c_chain_node_#in~ppnode#1.base| (store (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2951) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0))) (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_2955) |c_chain_node_#in~ppnode#1.base| v_ArrVal_2952)) (= |c_#valid| (store |c_old(#valid)| |chain_node_~node~0#1.base| v_ArrVal_2948)) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:47:21,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2022-11-25 17:47:21,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,149 INFO L321 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2022-11-25 17:47:21,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 79 [2022-11-25 17:47:21,163 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 57 treesize of output 45 [2022-11-25 17:47:21,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,203 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-25 17:47:21,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 37 [2022-11-25 17:47:21,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-25 17:47:21,565 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 17:47:21,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 33 [2022-11-25 17:47:21,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-25 17:47:21,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,590 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 17:47:21,905 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2957 (Array Int Int)) (v_ArrVal_2966 (Array Int Int)) (v_ArrVal_2963 (Array Int Int)) (|chain_node_~node~0#1.base| Int)) (and (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= (let ((.cse0 (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| (store v_ArrVal_2957 0 (select (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_2957) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))))) (store .cse0 |c_chain_node_#in~ppnode#1.base| (store (select .cse0 |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0))) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_2966) |c_chain_node_#in~ppnode#1.base| v_ArrVal_2963)) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:47:21,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:21,985 INFO L321 Elim1Store]: treesize reduction 47, result has 9.6 percent of original size [2022-11-25 17:47:21,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 88 [2022-11-25 17:47:21,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 60 [2022-11-25 17:47:22,026 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 10 treesize of output 9 [2022-11-25 17:47:22,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:47:22,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:22,053 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-25 17:47:22,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2022-11-25 17:47:23,951 INFO L321 Elim1Store]: treesize reduction 33, result has 8.3 percent of original size [2022-11-25 17:47:23,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 114 treesize of output 64 [2022-11-25 17:47:23,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:23,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:23,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:23,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:23,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:23,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:23,987 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:47:23,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 28 [2022-11-25 17:47:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 18 refuted. 2 times theorem prover too weak. 4 trivial. 10 not checked. [2022-11-25 17:47:24,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:47:25,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915643847] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:47:25,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:47:25,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 54 [2022-11-25 17:47:25,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954113615] [2022-11-25 17:47:25,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:47:25,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-25 17:47:25,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:25,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-25 17:47:25,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=2872, Unknown=4, NotChecked=218, Total=3306 [2022-11-25 17:47:25,103 INFO L87 Difference]: Start difference. First operand 121 states and 145 transitions. Second operand has 54 states, 46 states have (on average 2.0652173913043477) internal successors, (95), 49 states have internal predecessors, (95), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:47:33,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:47:35,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:47:37,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:47:43,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:47:45,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:47:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:46,410 INFO L93 Difference]: Finished difference Result 239 states and 289 transitions. [2022-11-25 17:47:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:47:46,410 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 46 states have (on average 2.0652173913043477) internal successors, (95), 49 states have internal predecessors, (95), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 59 [2022-11-25 17:47:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:46,412 INFO L225 Difference]: With dead ends: 239 [2022-11-25 17:47:46,412 INFO L226 Difference]: Without dead ends: 170 [2022-11-25 17:47:46,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=362, Invalid=4324, Unknown=14, NotChecked=270, Total=4970 [2022-11-25 17:47:46,414 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 279 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 101 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 330 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:46,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 942 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2345 Invalid, 29 Unknown, 330 Unchecked, 16.5s Time] [2022-11-25 17:47:46,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-25 17:47:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 121. [2022-11-25 17:47:46,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 97 states have (on average 1.1958762886597938) internal successors, (116), 104 states have internal predecessors, (116), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 17:47:46,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 145 transitions. [2022-11-25 17:47:46,480 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 145 transitions. Word has length 59 [2022-11-25 17:47:46,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:46,480 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 145 transitions. [2022-11-25 17:47:46,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 46 states have (on average 2.0652173913043477) internal successors, (95), 49 states have internal predecessors, (95), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:47:46,481 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 145 transitions. [2022-11-25 17:47:46,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 17:47:46,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:46,482 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1] [2022-11-25 17:47:46,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:46,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:47:46,689 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:47:46,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:46,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1740102043, now seen corresponding path program 1 times [2022-11-25 17:47:46,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:46,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303400546] [2022-11-25 17:47:46,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:46,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:47:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:47:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 17:47:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:50,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 17:47:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:47:54,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:54,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303400546] [2022-11-25 17:47:54,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303400546] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:47:54,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790133393] [2022-11-25 17:47:54,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:54,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:47:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:54,064 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:47:54,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:47:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:54,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 190 conjunts are in the unsatisfiable core [2022-11-25 17:47:54,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:54,480 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-25 17:47:54,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 27 [2022-11-25 17:47:54,597 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:47:54,598 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 11 treesize of output 7 [2022-11-25 17:47:54,850 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:47:54,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:47:54,857 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 8 treesize of output 7 [2022-11-25 17:47:54,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:47:54,902 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-11-25 17:47:54,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 42 [2022-11-25 17:47:54,905 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 30 treesize of output 22 [2022-11-25 17:47:55,187 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-25 17:47:55,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 26 [2022-11-25 17:47:55,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2022-11-25 17:47:55,488 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 9 treesize of output 7 [2022-11-25 17:47:55,676 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 18 treesize of output 10 [2022-11-25 17:47:55,683 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:47:55,683 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 11 treesize of output 7 [2022-11-25 17:47:56,024 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:47:56,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:47:56,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:47:56,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:47:56,099 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 0 case distinctions, treesize of input 66 treesize of output 39 [2022-11-25 17:47:56,102 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 39 treesize of output 35 [2022-11-25 17:47:56,137 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-11-25 17:47:56,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:56,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:56,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 36 [2022-11-25 17:47:56,556 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 13 [2022-11-25 17:47:56,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2022-11-25 17:47:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:56,603 INFO L321 Elim1Store]: treesize reduction 82, result has 31.7 percent of original size [2022-11-25 17:47:56,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 61 [2022-11-25 17:47:56,970 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-25 17:47:56,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 44 [2022-11-25 17:47:56,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:56,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:56,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-25 17:47:56,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:56,994 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:47:56,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 10 [2022-11-25 17:47:57,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 85 [2022-11-25 17:47:57,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,913 INFO L321 Elim1Store]: treesize reduction 47, result has 9.6 percent of original size [2022-11-25 17:47:57,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 68 [2022-11-25 17:47:57,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 54 [2022-11-25 17:47:57,934 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 70 treesize of output 55 [2022-11-25 17:47:57,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 38 [2022-11-25 17:47:57,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:47:57,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:57,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:58,012 INFO L321 Elim1Store]: treesize reduction 108, result has 32.1 percent of original size [2022-11-25 17:47:58,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 77 [2022-11-25 17:47:58,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:47:58,437 INFO L321 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-11-25 17:47:58,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 189 treesize of output 83 [2022-11-25 17:47:58,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:58,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:58,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 106 [2022-11-25 17:47:58,699 INFO L321 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-11-25 17:47:58,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 185 treesize of output 58 [2022-11-25 17:47:58,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:58,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:58,721 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:47:58,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2022-11-25 17:47:58,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 17:47:59,010 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3409 (Array Int Int)) (v_ArrVal_3410 (Array Int Int)) (v_ArrVal_3411 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_3412 (Array Int Int))) (and (< |chain_node_~node~0#1.base| |c_#StackHeapBarrier|) (= (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_3411) |c_chain_node_#in~ppnode#1.base| v_ArrVal_3409) |c_#memory_$Pointer$.base|) (= (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_3412) |c_chain_node_#in~ppnode#1.base| v_ArrVal_3410) |c_#memory_$Pointer$.offset|) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:47:59,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,096 INFO L321 Elim1Store]: treesize reduction 100, result has 9.9 percent of original size [2022-11-25 17:47:59,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 220 treesize of output 152 [2022-11-25 17:47:59,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 120 [2022-11-25 17:47:59,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:47:59,160 INFO L321 Elim1Store]: treesize reduction 40, result has 52.9 percent of original size [2022-11-25 17:47:59,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 60 [2022-11-25 17:47:59,178 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 9 treesize of output 7 [2022-11-25 17:48:00,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:48:00,166 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:48:00,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 84 [2022-11-25 17:48:00,438 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-25 17:48:00,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 40 [2022-11-25 17:48:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 19 refuted. 4 times theorem prover too weak. 1 trivial. 6 not checked. [2022-11-25 17:48:00,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:00,602 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_chain_node_~node~0#1.base_32| Int) (v_ArrVal_3425 (Array Int Int)) (v_ArrVal_3426 (Array Int Int)) (v_ArrVal_3427 (Array Int Int)) (v_ArrVal_3428 (Array Int Int))) (or (not (= (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| |v_chain_node_~node~0#1.base_32| v_ArrVal_3428) |c_ULTIMATE.start_create_sll_~#list~0#1.base| v_ArrVal_3426)) (.cse0 (store (store |c_#memory_$Pointer$.base| |v_chain_node_~node~0#1.base_32| v_ArrVal_3427) |c_ULTIMATE.start_create_sll_~#list~0#1.base| v_ArrVal_3425))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#p1~0#1.base|) |c_ULTIMATE.start_main_~#p1~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~#p1~0#1.base|) |c_ULTIMATE.start_main_~#p1~0#1.offset|))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (select (select .cse3 .cse1) .cse2)))) 0)) (not (< |v_chain_node_~node~0#1.base_32| |c_#StackHeapBarrier|)) (not (= (select |c_#valid| |v_chain_node_~node~0#1.base_32|) 0)))) is different from false [2022-11-25 17:48:00,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790133393] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:00,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:48:00,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29] total 53 [2022-11-25 17:48:00,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353013047] [2022-11-25 17:48:00,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:00,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-25 17:48:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-25 17:48:00,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=2489, Unknown=9, NotChecked=202, Total=2862 [2022-11-25 17:48:00,608 INFO L87 Difference]: Start difference. First operand 121 states and 145 transitions. Second operand has 53 states, 45 states have (on average 2.088888888888889) internal successors, (94), 47 states have internal predecessors, (94), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:48:06,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:10,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:14,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:17,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:23,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:26,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:29,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:31,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:33,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:35,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:41,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:48:42,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:42,742 INFO L93 Difference]: Finished difference Result 235 states and 288 transitions. [2022-11-25 17:48:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 17:48:42,743 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 45 states have (on average 2.088888888888889) internal successors, (94), 47 states have internal predecessors, (94), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 59 [2022-11-25 17:48:42,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:42,744 INFO L225 Difference]: With dead ends: 235 [2022-11-25 17:48:42,745 INFO L226 Difference]: Without dead ends: 232 [2022-11-25 17:48:42,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=439, Invalid=5248, Unknown=21, NotChecked=298, Total=6006 [2022-11-25 17:48:42,747 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 285 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 5098 mSolverCounterSat, 128 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 5098 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 232 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:42,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 2498 Invalid, 5489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 5098 Invalid, 31 Unknown, 232 Unchecked, 33.5s Time] [2022-11-25 17:48:42,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-25 17:48:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 125. [2022-11-25 17:48:42,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 101 states have (on average 1.198019801980198) internal successors, (121), 108 states have internal predecessors, (121), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 17:48:42,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 150 transitions. [2022-11-25 17:48:42,812 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 150 transitions. Word has length 59 [2022-11-25 17:48:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:42,812 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 150 transitions. [2022-11-25 17:48:42,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 45 states have (on average 2.088888888888889) internal successors, (94), 47 states have internal predecessors, (94), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:48:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 150 transitions. [2022-11-25 17:48:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 17:48:42,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:42,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:42,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:43,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:48:43,016 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:43,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:43,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1802853032, now seen corresponding path program 1 times [2022-11-25 17:48:43,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:43,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403271868] [2022-11-25 17:48:43,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:43,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:48:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:48:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:48:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:48:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:48:43,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:43,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403271868] [2022-11-25 17:48:43,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403271868] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:43,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620031872] [2022-11-25 17:48:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:43,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:43,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:43,324 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:43,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:48:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:43,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 17:48:43,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:43,845 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 17 [2022-11-25 17:48:43,848 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 21 treesize of output 13 [2022-11-25 17:48:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:48:43,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:48:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:48:44,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620031872] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:48:44,192 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:48:44,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 12 [2022-11-25 17:48:44,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477264200] [2022-11-25 17:48:44,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:48:44,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:48:44,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:44,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:48:44,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:48:44,194 INFO L87 Difference]: Start difference. First operand 125 states and 150 transitions. Second operand has 12 states, 9 states have (on average 5.888888888888889) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 17:48:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:44,812 INFO L93 Difference]: Finished difference Result 152 states and 184 transitions. [2022-11-25 17:48:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:48:44,813 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.888888888888889) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 63 [2022-11-25 17:48:44,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:44,814 INFO L225 Difference]: With dead ends: 152 [2022-11-25 17:48:44,814 INFO L226 Difference]: Without dead ends: 149 [2022-11-25 17:48:44,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:48:44,815 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:44,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:48:44,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-25 17:48:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 133. [2022-11-25 17:48:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 108 states have (on average 1.1944444444444444) internal successors, (129), 115 states have internal predecessors, (129), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:48:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 160 transitions. [2022-11-25 17:48:44,866 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 160 transitions. Word has length 63 [2022-11-25 17:48:44,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:44,866 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 160 transitions. [2022-11-25 17:48:44,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.888888888888889) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 17:48:44,867 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 160 transitions. [2022-11-25 17:48:44,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 17:48:44,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:44,868 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 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, 1] [2022-11-25 17:48:44,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:45,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:45,072 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:45,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:45,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1473312201, now seen corresponding path program 2 times [2022-11-25 17:48:45,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:45,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288298976] [2022-11-25 17:48:45,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:45,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:48,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:48:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:48,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:48:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:50,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-25 17:48:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:54,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 17:48:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 17:48:57,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:57,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288298976] [2022-11-25 17:48:57,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288298976] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:57,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638898910] [2022-11-25 17:48:57,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:48:57,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:57,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:57,165 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:57,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:48:57,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:48:57,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:48:57,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 245 conjunts are in the unsatisfiable core [2022-11-25 17:48:57,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:57,652 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-25 17:48:57,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 34 [2022-11-25 17:48:57,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-25 17:48:58,223 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:48:58,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:48:58,259 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:48:58,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:48:58,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:48:58,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:48:58,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:48:58,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:48:58,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 62 treesize of output 15 [2022-11-25 17:48:58,384 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 5 treesize of output 3 [2022-11-25 17:48:58,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 66 treesize of output 19 [2022-11-25 17:48:58,424 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 9 treesize of output 7 [2022-11-25 17:48:58,740 INFO L321 Elim1Store]: treesize reduction 42, result has 48.8 percent of original size [2022-11-25 17:48:58,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 58 [2022-11-25 17:48:59,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 42 [2022-11-25 17:48:59,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:48:59,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2022-11-25 17:48:59,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2022-11-25 17:48:59,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 17:48:59,888 WARN L859 $PredicateComparison]: unable to prove that (exists ((|chain_node_~node~0#1.base| Int) (v_ArrVal_4127 (Array Int Int)) (v_ArrVal_4128 (Array Int Int))) (and (= (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| (store v_ArrVal_4128 0 (select (select (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_4128) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))))) (store .cse0 |c_chain_node_#in~ppnode#1.base| (store (select .cse0 |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| |chain_node_~node~0#1.base|))) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (let ((.cse1 (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| (store v_ArrVal_4127 0 (select (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_4127) |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))))) (store .cse1 |c_chain_node_#in~ppnode#1.base| (store (select .cse1 |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset| 0)))) (= |c_#valid| (store |c_old(#valid)| |chain_node_~node~0#1.base| 1)) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:49:00,211 INFO L321 Elim1Store]: treesize reduction 153, result has 28.8 percent of original size [2022-11-25 17:49:00,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 133 treesize of output 294 [2022-11-25 17:49:00,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 185 [2022-11-25 17:49:00,808 INFO L321 Elim1Store]: treesize reduction 153, result has 28.8 percent of original size [2022-11-25 17:49:00,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 324 [2022-11-25 17:49:00,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 78 [2022-11-25 17:49:00,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 261 [2022-11-25 17:49:00,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2022-11-25 17:49:01,557 INFO L321 Elim1Store]: treesize reduction 42, result has 64.4 percent of original size [2022-11-25 17:49:01,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 115 [2022-11-25 17:49:02,010 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 17:49:02,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 318 [2022-11-25 17:49:02,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 318 [2022-11-25 17:49:02,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:02,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 143 [2022-11-25 17:49:03,060 INFO L321 Elim1Store]: treesize reduction 148, result has 9.2 percent of original size [2022-11-25 17:49:03,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 338 treesize of output 325 [2022-11-25 17:49:03,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:03,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:03,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 7 [2022-11-25 17:49:03,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 1 [2022-11-25 17:49:04,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 81 [2022-11-25 17:49:04,316 INFO L321 Elim1Store]: treesize reduction 52, result has 33.3 percent of original size [2022-11-25 17:49:04,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 415 treesize of output 329 [2022-11-25 17:49:04,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 275 treesize of output 342 [2022-11-25 17:49:04,705 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 7 treesize of output 5 [2022-11-25 17:49:04,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 100 treesize of output 103 [2022-11-25 17:49:04,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:04,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 5 [2022-11-25 17:49:05,091 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 80 treesize of output 70 [2022-11-25 17:49:05,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:05,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:05,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 15 [2022-11-25 17:49:13,437 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 225 DAG size of output: 165 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:49:14,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:14,545 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:49:14,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 3621 treesize of output 3628 [2022-11-25 17:49:14,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:14,648 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:49:14,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 4165 treesize of output 3662 [2022-11-25 17:49:14,815 INFO L321 Elim1Store]: treesize reduction 10, result has 86.3 percent of original size [2022-11-25 17:49:14,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 3607 treesize of output 3642 [2022-11-25 17:49:14,941 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 3579 treesize of output 3565 [2022-11-25 17:49:15,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-25 17:49:15,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 153 [2022-11-25 17:49:15,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 153 [2022-11-25 17:49:15,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-25 17:49:15,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-25 17:49:15,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 97 [2022-11-25 17:49:15,294 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 17:49:15,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 153 [2022-11-25 17:49:15,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-25 17:49:16,507 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 447 treesize of output 431 [2022-11-25 17:49:17,281 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 17:49:18,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,247 INFO L321 Elim1Store]: treesize reduction 70, result has 30.0 percent of original size [2022-11-25 17:49:18,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6634 treesize of output 6643 [2022-11-25 17:49:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,457 INFO L321 Elim1Store]: treesize reduction 42, result has 30.0 percent of original size [2022-11-25 17:49:18,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 7188 treesize of output 6466 [2022-11-25 17:49:18,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:18,706 INFO L321 Elim1Store]: treesize reduction 114, result has 24.5 percent of original size [2022-11-25 17:49:18,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 6414 treesize of output 6427 [2022-11-25 17:49:18,839 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 6396 treesize of output 6370 [2022-11-25 17:49:18,968 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 10 treesize of output 9 [2022-11-25 17:49:19,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-25 17:49:19,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-25 17:49:19,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 11 [2022-11-25 17:49:19,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 11 [2022-11-25 17:49:19,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 157 [2022-11-25 17:49:19,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 157 [2022-11-25 17:49:19,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 11 [2022-11-25 17:49:19,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 157 [2022-11-25 17:49:19,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 11 [2022-11-25 17:49:19,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:49:19,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 11 [2022-11-25 17:49:19,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 99 [2022-11-25 17:49:19,907 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 248 treesize of output 238 [2022-11-25 17:49:20,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:49:20,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:49:21,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 238 [2022-11-25 17:49:22,557 INFO L321 Elim1Store]: treesize reduction 112, result has 17.0 percent of original size [2022-11-25 17:49:22,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 422 treesize of output 220 [2022-11-25 17:49:22,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:22,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:22,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:22,597 INFO L321 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2022-11-25 17:49:22,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 375 treesize of output 325 [2022-11-25 17:49:23,653 INFO L321 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2022-11-25 17:49:23,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 474 treesize of output 232 [2022-11-25 17:49:23,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:23,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:23,708 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-25 17:49:23,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 202 treesize of output 198 [2022-11-25 17:49:23,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:23,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:23,754 INFO L321 Elim1Store]: treesize reduction 20, result has 45.9 percent of original size [2022-11-25 17:49:23,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 182 treesize of output 153 [2022-11-25 17:49:24,468 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4163 (Array Int Int)) (|chain_node_~ppnode#1.offset| Int) (v_ArrVal_4167 (Array Int Int)) (|chain_node_~node~0#1.base| Int) (v_ArrVal_4160 (Array Int Int)) (v_ArrVal_4161 (Array Int Int)) (|chain_node_~node~0#1.offset| Int)) (and (= (store (store |c_old(#memory_$Pointer$.base)| |chain_node_~node~0#1.base| v_ArrVal_4161) |c_chain_node_#in~ppnode#1.base| v_ArrVal_4163) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| (store v_ArrVal_4160 |chain_node_~node~0#1.offset| (select (select (store |c_old(#memory_$Pointer$.offset)| |chain_node_~node~0#1.base| v_ArrVal_4160) |c_chain_node_#in~ppnode#1.base|) |chain_node_~ppnode#1.offset|))) |c_chain_node_#in~ppnode#1.base| v_ArrVal_4167)) (<= (+ |chain_node_~node~0#1.base| 1) |c_#StackHeapBarrier|) (= (select |c_old(#valid)| |chain_node_~node~0#1.base|) 0))) is different from true [2022-11-25 17:49:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,662 INFO L321 Elim1Store]: treesize reduction 104, result has 18.1 percent of original size [2022-11-25 17:49:24,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 501 treesize of output 388 [2022-11-25 17:49:24,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,724 INFO L321 Elim1Store]: treesize reduction 59, result has 23.4 percent of original size [2022-11-25 17:49:24,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 469 treesize of output 443 [2022-11-25 17:49:24,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:24,811 INFO L321 Elim1Store]: treesize reduction 30, result has 72.0 percent of original size [2022-11-25 17:49:24,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 363 treesize of output 385 [2022-11-25 17:49:24,838 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 10 treesize of output 9 [2022-11-25 17:49:25,364 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 9 treesize of output 7 [2022-11-25 17:49:25,660 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 292 treesize of output 286 [2022-11-25 17:49:25,834 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:49:25,834 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 287 treesize of output 267 [2022-11-25 17:49:29,266 INFO L321 Elim1Store]: treesize reduction 110, result has 2.7 percent of original size [2022-11-25 17:49:29,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 213 treesize of output 89 [2022-11-25 17:49:29,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:29,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:49:29,281 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 17:49:29,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 25 [2022-11-25 17:49:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 10 not checked. [2022-11-25 17:49:29,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:49:33,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638898910] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:49:33,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:49:33,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 29] total 52 [2022-11-25 17:49:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149673760] [2022-11-25 17:49:33,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:49:33,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-25 17:49:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:33,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-25 17:49:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=3121, Unknown=8, NotChecked=226, Total=3540 [2022-11-25 17:49:33,503 INFO L87 Difference]: Start difference. First operand 133 states and 160 transitions. Second operand has 52 states, 44 states have (on average 2.1818181818181817) internal successors, (96), 47 states have internal predecessors, (96), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:49:45,651 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 184 DAG size of output: 126 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:50:06,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:50:06,717 INFO L93 Difference]: Finished difference Result 274 states and 335 transitions. [2022-11-25 17:50:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:50:06,718 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 44 states have (on average 2.1818181818181817) internal successors, (96), 47 states have internal predecessors, (96), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 63 [2022-11-25 17:50:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:50:06,719 INFO L225 Difference]: With dead ends: 274 [2022-11-25 17:50:06,719 INFO L226 Difference]: Without dead ends: 197 [2022-11-25 17:50:06,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1184 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=415, Invalid=5590, Unknown=9, NotChecked=306, Total=6320 [2022-11-25 17:50:06,722 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 249 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 4322 mSolverCounterSat, 113 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 4810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 4322 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 372 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:50:06,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 2362 Invalid, 4810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 4322 Invalid, 3 Unknown, 372 Unchecked, 17.6s Time] [2022-11-25 17:50:06,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-25 17:50:06,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 158. [2022-11-25 17:50:06,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.186046511627907) internal successors, (153), 137 states have internal predecessors, (153), 22 states have call successors, (22), 8 states have call predecessors, (22), 6 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 17:50:06,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 190 transitions. [2022-11-25 17:50:06,823 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 190 transitions. Word has length 63 [2022-11-25 17:50:06,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:50:06,823 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 190 transitions. [2022-11-25 17:50:06,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 44 states have (on average 2.1818181818181817) internal successors, (96), 47 states have internal predecessors, (96), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:50:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 190 transitions. [2022-11-25 17:50:06,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 17:50:06,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:50:06,825 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:50:06,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:50:07,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:50:07,027 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:50:07,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:50:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash 17440653, now seen corresponding path program 1 times [2022-11-25 17:50:07,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:50:07,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645739794] [2022-11-25 17:50:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:50:07,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:50:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:08,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:50:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:50:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:50:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:50:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:50:11,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:50:11,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645739794] [2022-11-25 17:50:11,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645739794] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:50:11,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532015033] [2022-11-25 17:50:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:50:11,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:50:11,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:50:11,271 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:50:11,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fb6b08-4677-4a7d-9806-0112de8e13be/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 17:50:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:11,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-25 17:50:11,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:50:11,955 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-25 17:50:11,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-25 17:50:11,961 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 8 treesize of output 7 [2022-11-25 17:50:11,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:11,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:50:11,983 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 51 treesize of output 9 [2022-11-25 17:50:11,987 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 9 treesize of output 7 [2022-11-25 17:50:12,023 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_chain_node_#in~ppnode#1.base|) |c_chain_node_#in~ppnode#1.offset|))) (or (and (= .cse0 |c_chain_node_#in~ppnode#1.base|) (not (= .cse0 0))) (exists ((v_DerPreprocessor_82 (Array Int Int)) (v_DerPreprocessor_83 (Array Int Int))) (let ((.cse1 (select v_DerPreprocessor_83 |c_chain_node_#in~ppnode#1.offset|))) (and (= .cse0 .cse1) (not (= .cse1 0)) (= (select |c_#memory_$Pointer$.base| .cse1) (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_82) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_83) .cse1 v_DerPreprocessor_82) |c_chain_node_#in~ppnode#1.base| v_DerPreprocessor_83) .cse1))))))) is different from true [2022-11-25 17:50:14,990 INFO L321 Elim1Store]: treesize reduction 305, result has 30.2 percent of original size [2022-11-25 17:50:14,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 167 treesize of output 261 [2022-11-25 17:50:15,037 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-25 17:50:15,038 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 29 treesize of output 38 [2022-11-25 17:50:15,195 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 6 treesize of output 4 [2022-11-25 17:50:15,197 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 17:50:15,281 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 34 treesize of output 24 [2022-11-25 17:50:15,324 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 25 treesize of output 17 [2022-11-25 17:50:15,366 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 17:50:15,411 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 26 treesize of output 18 [2022-11-25 17:50:15,442 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 6 treesize of output 4 [2022-11-25 17:50:15,461 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 33 treesize of output 23 [2022-11-25 17:50:17,953 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:17,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2022-11-25 17:50:18,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:18,900 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:18,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:18,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:18,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:19,577 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 14 treesize of output 13 [2022-11-25 17:50:19,602 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:19,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:19,643 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 13 [2022-11-25 17:50:19,664 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 13 [2022-11-25 17:50:20,558 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:20,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:20,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:20,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:20,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:22,649 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:22,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2022-11-25 17:50:23,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:23,769 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:23,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:23,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:23,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:24,529 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 14 treesize of output 13 [2022-11-25 17:50:24,555 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:24,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:24,600 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 13 [2022-11-25 17:50:24,622 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 13 [2022-11-25 17:50:25,701 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:25,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:25,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:25,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:25,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:28,392 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-25 17:50:28,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 [2022-11-25 17:50:28,466 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:28,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2022-11-25 17:50:28,481 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 14 treesize of output 13 [2022-11-25 17:50:28,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:28,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:28,607 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:28,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:28,677 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 17:50:28,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 32 [2022-11-25 17:50:28,735 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:28,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:28,832 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:28,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:28,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:28,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:29,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:29,047 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-25 17:50:29,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 [2022-11-25 17:50:29,062 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:29,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2022-11-25 17:50:29,105 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 17:50:29,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 32 [2022-11-25 17:50:29,169 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-25 17:50:29,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 48 [2022-11-25 17:50:29,233 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-25 17:50:29,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 48 [2022-11-25 17:50:29,383 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-25 17:50:29,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 48 [2022-11-25 17:50:29,549 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:29,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2022-11-25 17:50:29,602 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:29,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:29,647 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:29,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:29,725 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:29,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:29,816 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:29,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2022-11-25 17:50:29,848 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:29,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2022-11-25 17:50:29,914 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-25 17:50:29,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 [2022-11-25 17:50:29,976 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:29,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2022-11-25 17:50:29,987 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 14 treesize of output 13 [2022-11-25 17:50:30,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:30,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:30,091 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:30,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:30,138 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 17:50:30,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 32 [2022-11-25 17:50:30,192 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:30,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:30,260 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:30,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:30,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:30,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:30,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:30,473 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-25 17:50:30,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 [2022-11-25 17:50:30,539 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 17:50:30,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2022-11-25 17:50:30,552 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 14 treesize of output 13 [2022-11-25 17:50:30,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:30,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 17:50:30,663 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:30,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:30,735 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 17:50:30,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 32 [2022-11-25 17:50:30,795 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:30,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:30,869 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-25 17:50:30,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2022-11-25 17:50:31,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:31,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:50:31,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11