./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/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_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/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_e8b7fa73-187a-4444-9fe2-8445e3427412/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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- 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 18:01:30,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:01:30,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:01:30,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:01:30,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:01:30,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:01:30,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:01:30,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:01:30,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:01:30,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:01:30,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:01:30,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:01:30,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:01:30,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:01:30,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:01:30,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:01:30,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:01:30,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:01:30,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:01:30,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:01:30,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:01:30,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:01:30,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:01:30,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:01:30,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:01:30,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:01:30,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:01:30,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:01:30,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:01:30,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:01:30,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:01:30,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:01:30,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:01:30,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:01:30,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:01:30,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:01:30,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:01:30,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:01:30,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:01:30,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:01:30,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:01:30,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:01:30,526 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:01:30,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:01:30,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:01:30,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:01:30,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:01:30,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:01:30,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:01:30,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:01:30,529 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:01:30,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:01:30,530 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:01:30,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:01:30,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:01:30,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:01:30,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:01:30,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:01:30,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:01:30,531 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:01:30,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:01:30,532 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:01:30,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:01:30,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:01:30,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:01:30,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:01:30,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:01:30,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:01:30,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:01:30,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:01:30,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:01:30,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:01:30,534 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:01:30,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:01:30,534 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:01:30,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:01:30,535 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_e8b7fa73-187a-4444-9fe2-8445e3427412/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2022-11-25 18:01:30,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:01:30,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:01:30,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:01:30,912 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:01:30,913 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:01:30,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2022-11-25 18:01:34,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:01:34,352 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:01:34,352 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2022-11-25 18:01:34,375 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/data/76b55da79/bff91484c8b741e5823cd717d7021846/FLAG642253285 [2022-11-25 18:01:34,394 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/data/76b55da79/bff91484c8b741e5823cd717d7021846 [2022-11-25 18:01:34,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:01:34,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:01:34,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:01:34,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:01:34,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:01:34,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:01:34" (1/1) ... [2022-11-25 18:01:34,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b0dc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:34, skipping insertion in model container [2022-11-25 18:01:34,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:01:34" (1/1) ... [2022-11-25 18:01:34,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:01:34,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:01:34,981 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_e8b7fa73-187a-4444-9fe2-8445e3427412/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-11-25 18:01:35,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:01:35,050 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:01:35,088 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_e8b7fa73-187a-4444-9fe2-8445e3427412/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-11-25 18:01:35,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:01:35,166 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:01:35,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35 WrapperNode [2022-11-25 18:01:35,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:01:35,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:01:35,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:01:35,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:01:35,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,261 INFO L138 Inliner]: procedures = 232, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2022-11-25 18:01:35,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:01:35,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:01:35,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:01:35,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:01:35,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:01:35,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:01:35,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:01:35,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:01:35,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (1/1) ... [2022-11-25 18:01:35,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:01:35,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:01:35,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:01:35,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:01:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 18:01:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-11-25 18:01:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-11-25 18:01:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:01:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 18:01:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-11-25 18:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-11-25 18:01:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:01:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-11-25 18:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-11-25 18:01:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 18:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-25 18:01:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-25 18:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:01:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:01:35,704 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:01:35,709 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:01:36,202 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:01:36,213 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:01:36,219 INFO L300 CfgBuilder]: Removed 41 assume(true) statements. [2022-11-25 18:01:36,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:01:36 BoogieIcfgContainer [2022-11-25 18:01:36,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:01:36,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:01:36,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:01:36,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:01:36,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:01:34" (1/3) ... [2022-11-25 18:01:36,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472f0b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:01:36, skipping insertion in model container [2022-11-25 18:01:36,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:01:35" (2/3) ... [2022-11-25 18:01:36,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472f0b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:01:36, skipping insertion in model container [2022-11-25 18:01:36,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:01:36" (3/3) ... [2022-11-25 18:01:36,235 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2022-11-25 18:01:36,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:01:36,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:01:36,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:01:36,330 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;@7c845880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:01:36,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:01:36,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 108 states have internal predecessors, (155), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-25 18:01:36,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 18:01:36,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:36,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:36,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:36,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:36,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1761516263, now seen corresponding path program 1 times [2022-11-25 18:01:36,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:36,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259946877] [2022-11-25 18:01:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:36,525 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 18:01:36,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:36,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259946877] [2022-11-25 18:01:36,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259946877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:36,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:36,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:01:36,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362058207] [2022-11-25 18:01:36,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:36,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:01:36,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:36,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:01:36,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:01:36,580 INFO L87 Difference]: Start difference. First operand has 118 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 108 states have internal predecessors, (155), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 18:01:36,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:36,633 INFO L93 Difference]: Finished difference Result 230 states and 397 transitions. [2022-11-25 18:01:36,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:01:36,636 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 9 [2022-11-25 18:01:36,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:36,645 INFO L225 Difference]: With dead ends: 230 [2022-11-25 18:01:36,645 INFO L226 Difference]: Without dead ends: 107 [2022-11-25 18:01:36,651 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 18:01:36,655 INFO L413 NwaCegarLoop]: 136 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, 136 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 18:01:36,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:01:36,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-25 18:01:36,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-25 18:01:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 97 states have internal predecessors, (102), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:01:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2022-11-25 18:01:36,707 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 9 [2022-11-25 18:01:36,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:36,708 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2022-11-25 18:01:36,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 18:01:36,708 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2022-11-25 18:01:36,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 18:01:36,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:36,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:36,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:01:36,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:36,712 INFO L85 PathProgramCache]: Analyzing trace with hash 849043181, now seen corresponding path program 1 times [2022-11-25 18:01:36,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:36,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489633479] [2022-11-25 18:01:36,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:36,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:37,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:37,166 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 18:01:37,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489633479] [2022-11-25 18:01:37,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489633479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:37,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:37,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:01:37,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243243543] [2022-11-25 18:01:37,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:37,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:01:37,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:37,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:01:37,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:01:37,172 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:37,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:37,693 INFO L93 Difference]: Finished difference Result 109 states and 129 transitions. [2022-11-25 18:01:37,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:01:37,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 18:01:37,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:37,704 INFO L225 Difference]: With dead ends: 109 [2022-11-25 18:01:37,704 INFO L226 Difference]: Without dead ends: 106 [2022-11-25 18:01:37,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:01:37,711 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 242 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:01:37,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 133 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:01:37,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-25 18:01:37,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-25 18:01:37,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 82 states have (on average 1.2317073170731707) internal successors, (101), 96 states have internal predecessors, (101), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:01:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 126 transitions. [2022-11-25 18:01:37,754 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 126 transitions. Word has length 21 [2022-11-25 18:01:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:37,757 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 126 transitions. [2022-11-25 18:01:37,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2022-11-25 18:01:37,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 18:01:37,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:37,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:37,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:01:37,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:37,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:37,762 INFO L85 PathProgramCache]: Analyzing trace with hash 502050183, now seen corresponding path program 1 times [2022-11-25 18:01:37,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:37,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172642101] [2022-11-25 18:01:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:38,733 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 18:01:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:38,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172642101] [2022-11-25 18:01:38,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172642101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:38,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:38,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:01:38,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951656617] [2022-11-25 18:01:38,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:38,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:01:38,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:38,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:01:38,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:01:38,738 INFO L87 Difference]: Start difference. First operand 106 states and 126 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:39,913 INFO L93 Difference]: Finished difference Result 198 states and 235 transitions. [2022-11-25 18:01:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:01:39,913 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-25 18:01:39,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:39,916 INFO L225 Difference]: With dead ends: 198 [2022-11-25 18:01:39,916 INFO L226 Difference]: Without dead ends: 192 [2022-11-25 18:01:39,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2022-11-25 18:01:39,918 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 533 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:01:39,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 157 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:01:39,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-25 18:01:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2022-11-25 18:01:39,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 158 states have internal predecessors, (179), 23 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-25 18:01:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 209 transitions. [2022-11-25 18:01:39,958 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 209 transitions. Word has length 24 [2022-11-25 18:01:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:39,959 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 209 transitions. [2022-11-25 18:01:39,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 209 transitions. [2022-11-25 18:01:39,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 18:01:39,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:39,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:39,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:01:39,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:39,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:39,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1234303898, now seen corresponding path program 1 times [2022-11-25 18:01:39,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:39,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990425535] [2022-11-25 18:01:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:39,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:41,389 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 18:01:41,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:41,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990425535] [2022-11-25 18:01:41,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990425535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:41,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:41,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:01:41,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360306553] [2022-11-25 18:01:41,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:41,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:01:41,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:41,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:01:41,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:01:41,394 INFO L87 Difference]: Start difference. First operand 172 states and 209 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:42,610 INFO L93 Difference]: Finished difference Result 274 states and 329 transitions. [2022-11-25 18:01:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:01:42,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-25 18:01:42,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:42,614 INFO L225 Difference]: With dead ends: 274 [2022-11-25 18:01:42,615 INFO L226 Difference]: Without dead ends: 271 [2022-11-25 18:01:42,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:01:42,621 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 322 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:01:42,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 225 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:01:42,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-25 18:01:42,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 253. [2022-11-25 18:01:42,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.238532110091743) internal successors, (270), 233 states have internal predecessors, (270), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:01:42,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 309 transitions. [2022-11-25 18:01:42,684 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 309 transitions. Word has length 27 [2022-11-25 18:01:42,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:42,685 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 309 transitions. [2022-11-25 18:01:42,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 309 transitions. [2022-11-25 18:01:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 18:01:42,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:42,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:42,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:01:42,687 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:42,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:42,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1680148119, now seen corresponding path program 1 times [2022-11-25 18:01:42,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:42,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458723958] [2022-11-25 18:01:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:42,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:44,091 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 18:01:44,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:44,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458723958] [2022-11-25 18:01:44,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458723958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:44,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:44,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:01:44,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818077582] [2022-11-25 18:01:44,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:44,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:01:44,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:01:44,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:01:44,095 INFO L87 Difference]: Start difference. First operand 253 states and 309 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:45,609 INFO L93 Difference]: Finished difference Result 273 states and 327 transitions. [2022-11-25 18:01:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:01:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-25 18:01:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:45,612 INFO L225 Difference]: With dead ends: 273 [2022-11-25 18:01:45,612 INFO L226 Difference]: Without dead ends: 270 [2022-11-25 18:01:45,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-11-25 18:01:45,613 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 352 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:01:45,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 295 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:01:45,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-25 18:01:45,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-11-25 18:01:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2339449541284404) internal successors, (269), 233 states have internal predecessors, (269), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:01:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 308 transitions. [2022-11-25 18:01:45,683 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 308 transitions. Word has length 30 [2022-11-25 18:01:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:45,683 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 308 transitions. [2022-11-25 18:01:45,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:45,684 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 308 transitions. [2022-11-25 18:01:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 18:01:45,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:45,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:45,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:01:45,685 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:45,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:45,686 INFO L85 PathProgramCache]: Analyzing trace with hash -493122043, now seen corresponding path program 1 times [2022-11-25 18:01:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:45,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749647543] [2022-11-25 18:01:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:45,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:47,633 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 18:01:47,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:47,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749647543] [2022-11-25 18:01:47,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749647543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:47,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:47,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:01:47,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147394093] [2022-11-25 18:01:47,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:47,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 18:01:47,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:47,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 18:01:47,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:01:47,637 INFO L87 Difference]: Start difference. First operand 253 states and 308 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:49,192 INFO L93 Difference]: Finished difference Result 272 states and 325 transitions. [2022-11-25 18:01:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:01:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-11-25 18:01:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:49,195 INFO L225 Difference]: With dead ends: 272 [2022-11-25 18:01:49,195 INFO L226 Difference]: Without dead ends: 269 [2022-11-25 18:01:49,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:01:49,199 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 352 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:01:49,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 271 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 18:01:49,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-25 18:01:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 253. [2022-11-25 18:01:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2293577981651376) internal successors, (268), 233 states have internal predecessors, (268), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:01:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 307 transitions. [2022-11-25 18:01:49,260 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 307 transitions. Word has length 33 [2022-11-25 18:01:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:49,262 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 307 transitions. [2022-11-25 18:01:49,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 307 transitions. [2022-11-25 18:01:49,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-25 18:01:49,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:49,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:49,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:01:49,270 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:49,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2033122620, now seen corresponding path program 1 times [2022-11-25 18:01:49,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:49,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472735196] [2022-11-25 18:01:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:49,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:50,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:51,129 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 18:01:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:51,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472735196] [2022-11-25 18:01:51,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472735196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:51,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:51,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:01:51,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515458976] [2022-11-25 18:01:51,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:51,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:01:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:01:51,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:01:51,131 INFO L87 Difference]: Start difference. First operand 253 states and 307 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:52,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:52,619 INFO L93 Difference]: Finished difference Result 271 states and 323 transitions. [2022-11-25 18:01:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:01:52,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-25 18:01:52,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:52,621 INFO L225 Difference]: With dead ends: 271 [2022-11-25 18:01:52,621 INFO L226 Difference]: Without dead ends: 268 [2022-11-25 18:01:52,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-25 18:01:52,623 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 348 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:01:52,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 249 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 18:01:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-25 18:01:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 253. [2022-11-25 18:01:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.224770642201835) internal successors, (267), 233 states have internal predecessors, (267), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:01:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 306 transitions. [2022-11-25 18:01:52,676 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 306 transitions. Word has length 36 [2022-11-25 18:01:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:52,677 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 306 transitions. [2022-11-25 18:01:52,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 306 transitions. [2022-11-25 18:01:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 18:01:52,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:52,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:52,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:01:52,678 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:52,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:52,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1335339115, now seen corresponding path program 1 times [2022-11-25 18:01:52,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:52,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369187646] [2022-11-25 18:01:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:52,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:53,972 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 18:01:53,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:53,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369187646] [2022-11-25 18:01:53,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369187646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:01:53,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:01:53,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:01:53,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916195011] [2022-11-25 18:01:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:01:53,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:01:53,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:01:53,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:01:53,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:01:53,975 INFO L87 Difference]: Start difference. First operand 253 states and 306 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:55,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:01:55,297 INFO L93 Difference]: Finished difference Result 270 states and 321 transitions. [2022-11-25 18:01:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:01:55,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-25 18:01:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:01:55,299 INFO L225 Difference]: With dead ends: 270 [2022-11-25 18:01:55,300 INFO L226 Difference]: Without dead ends: 267 [2022-11-25 18:01:55,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2022-11-25 18:01:55,302 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 424 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:01:55,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 250 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:01:55,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-25 18:01:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 253. [2022-11-25 18:01:55,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 218 states have (on average 1.2201834862385321) internal successors, (266), 233 states have internal predecessors, (266), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:01:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 305 transitions. [2022-11-25 18:01:55,362 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 305 transitions. Word has length 39 [2022-11-25 18:01:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:01:55,364 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 305 transitions. [2022-11-25 18:01:55,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:01:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 305 transitions. [2022-11-25 18:01:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 18:01:55,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:01:55,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:01:55,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:01:55,368 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:01:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:01:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1154705564, now seen corresponding path program 1 times [2022-11-25 18:01:55,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:01:55,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134603358] [2022-11-25 18:01:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:01:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:01:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:01:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:57,355 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:01:57,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:01:57,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134603358] [2022-11-25 18:01:57,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134603358] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:01:57,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044805980] [2022-11-25 18:01:57,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:01:57,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:01:57,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:01:57,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:01:57,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:01:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:01:57,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 142 conjunts are in the unsatisfiable core [2022-11-25 18:01:57,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:01:57,845 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:01:57,846 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 17 treesize of output 21 [2022-11-25 18:01:57,947 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 18:01:57,947 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 14 treesize of output 20 [2022-11-25 18:01:57,965 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 18:01:57,994 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 18:01:57,994 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 21 treesize of output 21 [2022-11-25 18:01:58,048 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 15 treesize of output 7 [2022-11-25 18:01:58,059 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 7 treesize of output 3 [2022-11-25 18:01:58,293 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-11-25 18:01:58,293 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 4 case distinctions, treesize of input 61 treesize of output 82 [2022-11-25 18:01:58,312 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 133 treesize of output 105 [2022-11-25 18:01:58,320 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 78 [2022-11-25 18:01:58,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:01:58,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:01:58,440 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 26 treesize of output 28 [2022-11-25 18:01:58,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-11-25 18:01:58,609 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 18:01:58,609 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 11 [2022-11-25 18:01:58,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-11-25 18:01:58,720 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 22 treesize of output 8 [2022-11-25 18:01:58,922 INFO L321 Elim1Store]: treesize reduction 177, result has 36.1 percent of original size [2022-11-25 18:01:58,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 258 treesize of output 397 [2022-11-25 18:01:58,951 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 18:01:58,973 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 18:01:58,993 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 18:01:59,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:01:59,888 INFO L321 Elim1Store]: treesize reduction 139, result has 22.3 percent of original size [2022-11-25 18:01:59,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 747 treesize of output 805 [2022-11-25 18:01:59,996 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 18:02:00,057 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 18:02:00,095 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 5 treesize of output 3 [2022-11-25 18:02:00,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:02:00,290 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 156 treesize of output 11 [2022-11-25 18:02:00,298 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 18:02:01,472 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-25 18:02:01,473 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 606 treesize of output 436 [2022-11-25 18:02:01,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:01,508 INFO L321 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2022-11-25 18:02:01,509 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 580 treesize of output 507 [2022-11-25 18:02:01,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 416 [2022-11-25 18:02:01,539 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 3 [2022-11-25 18:02:01,722 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-25 18:02:01,723 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 385 treesize of output 351 [2022-11-25 18:02:01,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:01,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:01,750 INFO L321 Elim1Store]: treesize reduction 37, result has 36.2 percent of original size [2022-11-25 18:02:01,750 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 92 [2022-11-25 18:02:02,082 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 7 treesize of output 3 [2022-11-25 18:02:02,172 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 20 treesize of output 8 [2022-11-25 18:02:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:02,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:02:03,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044805980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:02:03,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:02:03,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2022-11-25 18:02:03,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297620111] [2022-11-25 18:02:03,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:02:03,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-25 18:02:03,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:03,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-25 18:02:03,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1122, Unknown=34, NotChecked=0, Total=1260 [2022-11-25 18:02:03,029 INFO L87 Difference]: Start difference. First operand 253 states and 305 transitions. Second operand has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 20 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:02:04,280 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_list_add_#in~head#1.base|)) (.cse6 (select (select |c_old(#memory_$Pointer$.base)| |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset|))) (let ((.cse0 (= |c_list_add_#in~head#1.base| .cse6)) (.cse14 (= |c_list_add_#in~new#1.offset| (select .cse3 |c_list_add_#in~head#1.offset|))) (.cse12 (select |c_#memory_$Pointer$.offset| .cse6)) (.cse4 (= |c_list_add_#in~head#1.base| |c_list_add_#in~new#1.base|)) (.cse1 (select |c_old(#memory_$Pointer$.offset)| |c_list_add_#in~head#1.base|))) (let ((.cse7 (select |c_old(#memory_$Pointer$.base)| .cse6)) (.cse8 (+ (select .cse1 |c_list_add_#in~head#1.offset|) 4)) (.cse15 (and (or (and .cse0 .cse14) (and .cse14 (exists ((v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int))) (let ((.cse21 (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_DerPreprocessor_16) |c_list_add_#in~new#1.base| v_DerPreprocessor_17) |c_list_add_#in~head#1.base| .cse3) .cse6 v_DerPreprocessor_16) |c_list_add_#in~new#1.base| v_DerPreprocessor_17) |c_list_add_#in~head#1.base| .cse3) .cse6 v_DerPreprocessor_16) |c_list_add_#in~new#1.base| v_DerPreprocessor_17) |c_list_add_#in~head#1.base| .cse3) .cse6 v_DerPreprocessor_16) |c_list_add_#in~new#1.base| v_DerPreprocessor_17) |c_list_add_#in~head#1.base| .cse3) .cse6 v_DerPreprocessor_16) |c_list_add_#in~new#1.base| v_DerPreprocessor_17) |c_list_add_#in~head#1.base| .cse3) .cse6 v_DerPreprocessor_16) |c_list_add_#in~new#1.base| v_DerPreprocessor_17) |c_list_add_#in~head#1.base| .cse3))) (let ((.cse20 (select .cse21 .cse6))) (and (= .cse20 v_DerPreprocessor_16) (= .cse12 .cse20) (= (select |c_#memory_$Pointer$.offset| |c_list_add_#in~new#1.base|) (select .cse21 |c_list_add_#in~new#1.base|)))))))) (not .cse4))) (.cse9 (= |c_list_add_#in~new#1.base| .cse6))) (and (or .cse0 (let ((.cse2 (@diff .cse1 .cse3))) (and (= (store .cse1 .cse2 (select .cse3 .cse2)) .cse3) (or (= |c_list_add_#in~head#1.offset| .cse2) (= .cse1 .cse3)))) .cse4) (exists ((v_ArrVal_1015 (Array Int Int)) (v_ArrVal_1025 (Array Int Int)) (v_ArrVal_1017 Int) (|list_add___list_add_~next#1.offset| Int)) (= (let ((.cse5 (store |c_old(#memory_$Pointer$.base)| .cse6 (store .cse7 (+ |list_add___list_add_~next#1.offset| 4) |c_list_add_#in~new#1.base|)))) (store (store .cse5 |c_list_add_#in~new#1.base| v_ArrVal_1025) |c_list_add_#in~head#1.base| (store (select (store .cse5 |c_list_add_#in~new#1.base| v_ArrVal_1015) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| v_ArrVal_1017))) |c_#memory_$Pointer$.base|)) (= (select |c_#valid| 3) 1) (exists ((v_ArrVal_1008 (Array Int Int)) (v_ArrVal_1006 (Array Int Int)) (v_ArrVal_1004 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store (store (store |c_old(#memory_$Pointer$.base)| .cse6 v_ArrVal_1006) |c_list_add_#in~new#1.base| v_ArrVal_1008) |c_list_add_#in~head#1.base| (store (select (store (store |c_old(#memory_$Pointer$.base)| .cse6 (store .cse7 .cse8 |c_list_add_#in~new#1.base|)) |c_list_add_#in~new#1.base| v_ArrVal_1004) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)))) (or (not .cse0) (<= |c_list_add_#in~new#1.offset| (select .cse3 .cse8)) .cse9 (= |c_list_add_#in~head#1.offset| .cse8)) (= 3 |c_~#gl_list~0.base|) (= (select (select |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset|) |c_list_add_#in~new#1.base|) (or (and (or (exists ((v_DerPreprocessor_12 (Array Int Int))) (and (exists ((v_DerPreprocessor_10 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int))) (let ((.cse10 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12) .cse6 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12))) (and (= v_DerPreprocessor_11 (select .cse10 |c_list_add_#in~new#1.base|)) (exists ((v_prenex_19 (Array Int Int)) (v_prenex_21 (Array Int Int)) (v_prenex_20 (Array Int Int))) (let ((.cse11 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_prenex_19) |c_list_add_#in~new#1.base| v_prenex_21) |c_list_add_#in~head#1.base| v_prenex_20) .cse6 v_prenex_19) |c_list_add_#in~new#1.base| v_prenex_21) |c_list_add_#in~head#1.base| v_prenex_20))) (let ((.cse13 (select .cse11 .cse6))) (and (= v_prenex_21 (select .cse11 |c_list_add_#in~new#1.base|)) (= |c_list_add_#in~new#1.offset| (select v_prenex_20 |c_list_add_#in~head#1.offset|)) (= .cse12 .cse13) (= (select .cse10 .cse6) .cse13)))))))) (= |c_list_add_#in~new#1.offset| (select v_DerPreprocessor_12 |c_list_add_#in~head#1.offset|)))) .cse9) .cse14 .cse4) .cse15) (<= 0 |c_~#gl_list~0.offset|) (or .cse15 (and (or (exists ((v_DerPreprocessor_12 (Array Int Int))) (and (exists ((v_DerPreprocessor_10 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int))) (let ((.cse19 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12) .cse6 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12))) (let ((.cse16 (select .cse19 .cse6))) (and (= .cse16 v_DerPreprocessor_10) (exists ((v_prenex_19 (Array Int Int)) (v_prenex_21 (Array Int Int)) (v_prenex_20 (Array Int Int))) (let ((.cse17 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_prenex_19) |c_list_add_#in~new#1.base| v_prenex_21) |c_list_add_#in~head#1.base| v_prenex_20) .cse6 v_prenex_19) |c_list_add_#in~new#1.base| v_prenex_21) |c_list_add_#in~head#1.base| v_prenex_20))) (let ((.cse18 (select .cse17 .cse6))) (and (= v_prenex_21 (select .cse17 |c_list_add_#in~new#1.base|)) (= |c_list_add_#in~new#1.offset| (select v_prenex_20 |c_list_add_#in~head#1.offset|)) (= v_prenex_19 .cse18) (= .cse12 .cse18) (= .cse16 .cse18))))) (= v_DerPreprocessor_11 (select .cse19 |c_list_add_#in~new#1.base|)))))) (= |c_list_add_#in~new#1.offset| (select v_DerPreprocessor_12 |c_list_add_#in~head#1.offset|)))) .cse9) .cse14 .cse4)) (<= |c_~#gl_list~0.offset| 0))))) is different from true [2022-11-25 18:02:07,428 WARN L539 Checker$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 18:02:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:14,978 INFO L93 Difference]: Finished difference Result 366 states and 429 transitions. [2022-11-25 18:02:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:02:14,979 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 20 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2022-11-25 18:02:14,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:14,981 INFO L225 Difference]: With dead ends: 366 [2022-11-25 18:02:14,981 INFO L226 Difference]: Without dead ends: 360 [2022-11-25 18:02:14,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=392, Invalid=2864, Unknown=54, NotChecked=112, Total=3422 [2022-11-25 18:02:14,984 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 921 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 157 mSolverCounterUnsat, 115 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 4442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 115 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:14,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 794 Invalid, 4442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [157 Valid, 4155 Invalid, 115 Unknown, 15 Unchecked, 8.4s Time] [2022-11-25 18:02:14,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-25 18:02:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 274. [2022-11-25 18:02:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 237 states have (on average 1.2067510548523206) internal successors, (286), 252 states have internal predecessors, (286), 29 states have call successors, (29), 10 states have call predecessors, (29), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:02:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 326 transitions. [2022-11-25 18:02:15,044 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 326 transitions. Word has length 40 [2022-11-25 18:02:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:15,045 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 326 transitions. [2022-11-25 18:02:15,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 20 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:02:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 326 transitions. [2022-11-25 18:02:15,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 18:02:15,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:15,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:15,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 18:02:15,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 18:02:15,253 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:02:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1293265745, now seen corresponding path program 1 times [2022-11-25 18:02:15,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:15,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722039024] [2022-11-25 18:02:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:15,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:16,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:02:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:16,863 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 18:02:16,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:16,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722039024] [2022-11-25 18:02:16,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722039024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:16,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:16,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:02:16,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031110295] [2022-11-25 18:02:16,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:16,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:02:16,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:16,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:02:16,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:02:16,867 INFO L87 Difference]: Start difference. First operand 274 states and 326 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:18,549 INFO L93 Difference]: Finished difference Result 290 states and 340 transitions. [2022-11-25 18:02:18,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 18:02:18,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-11-25 18:02:18,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:18,553 INFO L225 Difference]: With dead ends: 290 [2022-11-25 18:02:18,553 INFO L226 Difference]: Without dead ends: 287 [2022-11-25 18:02:18,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:02:18,554 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 379 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:18,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 295 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:02:18,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-25 18:02:18,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 274. [2022-11-25 18:02:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 237 states have (on average 1.2025316455696202) internal successors, (285), 252 states have internal predecessors, (285), 29 states have call successors, (29), 10 states have call predecessors, (29), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:02:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 325 transitions. [2022-11-25 18:02:18,635 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 325 transitions. Word has length 42 [2022-11-25 18:02:18,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:18,636 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 325 transitions. [2022-11-25 18:02:18,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 325 transitions. [2022-11-25 18:02:18,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 18:02:18,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:18,637 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-11-25 18:02:18,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:02:18,637 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:02:18,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:18,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1188127317, now seen corresponding path program 1 times [2022-11-25 18:02:18,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:18,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330241612] [2022-11-25 18:02:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:18,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:20,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:02:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:20,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:02:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:02:20,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:20,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330241612] [2022-11-25 18:02:20,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330241612] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:02:20,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627134412] [2022-11-25 18:02:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:20,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:02:20,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:02:20,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:02:20,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:02:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:20,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 167 conjunts are in the unsatisfiable core [2022-11-25 18:02:20,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:02:20,941 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:02:20,941 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 17 treesize of output 21 [2022-11-25 18:02:21,034 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 23 treesize of output 23 [2022-11-25 18:02:21,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:21,061 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 17 treesize of output 7 [2022-11-25 18:02:21,176 INFO L321 Elim1Store]: treesize reduction 69, result has 33.0 percent of original size [2022-11-25 18:02:21,177 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 100 [2022-11-25 18:02:21,196 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 114 treesize of output 91 [2022-11-25 18:02:21,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:21,480 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-25 18:02:21,482 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 121 [2022-11-25 18:02:21,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:21,504 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 50 treesize of output 43 [2022-11-25 18:02:21,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:21,541 INFO L321 Elim1Store]: treesize reduction 30, result has 40.0 percent of original size [2022-11-25 18:02:21,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 55 [2022-11-25 18:02:22,743 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 18:02:22,743 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 141 treesize of output 124 [2022-11-25 18:02:22,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:22,754 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 79 treesize of output 79 [2022-11-25 18:02:22,774 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-25 18:02:22,774 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 16 treesize of output 26 [2022-11-25 18:02:22,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:22,785 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 16 treesize of output 20 [2022-11-25 18:02:22,953 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 18:02:22,954 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 11 [2022-11-25 18:02:23,071 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 48 treesize of output 44 [2022-11-25 18:02:23,078 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 40 treesize of output 42 [2022-11-25 18:02:23,106 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 33 treesize of output 27 [2022-11-25 18:02:23,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:23,111 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 36 treesize of output 16 [2022-11-25 18:02:23,379 INFO L321 Elim1Store]: treesize reduction 61, result has 19.7 percent of original size [2022-11-25 18:02:23,380 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 4 case distinctions, treesize of input 137 treesize of output 148 [2022-11-25 18:02:23,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:23,401 INFO L321 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2022-11-25 18:02:23,401 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 3 case distinctions, treesize of input 162 treesize of output 113 [2022-11-25 18:02:23,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:23,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 84 [2022-11-25 18:02:23,420 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 59 [2022-11-25 18:02:23,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:23,442 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 18:02:23,442 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 1 case distinctions, treesize of input 53 treesize of output 57 [2022-11-25 18:02:23,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:23,453 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 36 treesize of output 40 [2022-11-25 18:02:23,629 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 52 treesize of output 50 [2022-11-25 18:02:23,652 INFO L321 Elim1Store]: treesize reduction 37, result has 36.2 percent of original size [2022-11-25 18:02:23,653 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 2 case distinctions, treesize of input 59 treesize of output 72 [2022-11-25 18:02:24,124 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 30 treesize of output 18 [2022-11-25 18:02:24,128 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 19 treesize of output 11 [2022-11-25 18:02:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:24,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:02:25,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627134412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:02:25,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:02:25,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2022-11-25 18:02:25,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945140518] [2022-11-25 18:02:25,094 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:02:25,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 18:02:25,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:25,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 18:02:25,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1058, Unknown=15, NotChecked=0, Total=1190 [2022-11-25 18:02:25,096 INFO L87 Difference]: Start difference. First operand 274 states and 325 transitions. Second operand has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 19 states have internal predecessors, (73), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:02:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:30,177 INFO L93 Difference]: Finished difference Result 378 states and 448 transitions. [2022-11-25 18:02:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:02:30,178 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 19 states have internal predecessors, (73), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2022-11-25 18:02:30,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:30,181 INFO L225 Difference]: With dead ends: 378 [2022-11-25 18:02:30,181 INFO L226 Difference]: Without dead ends: 375 [2022-11-25 18:02:30,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=346, Invalid=2284, Unknown=22, NotChecked=0, Total=2652 [2022-11-25 18:02:30,183 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1687 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 312 mSolverCounterUnsat, 76 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 76 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:30,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 417 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 2245 Invalid, 76 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 18:02:30,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-25 18:02:30,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 277. [2022-11-25 18:02:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 240 states have (on average 1.1958333333333333) internal successors, (287), 255 states have internal predecessors, (287), 29 states have call successors, (29), 10 states have call predecessors, (29), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:02:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 327 transitions. [2022-11-25 18:02:30,257 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 327 transitions. Word has length 43 [2022-11-25 18:02:30,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:30,258 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 327 transitions. [2022-11-25 18:02:30,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 19 states have internal predecessors, (73), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:02:30,259 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 327 transitions. [2022-11-25 18:02:30,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 18:02:30,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:30,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:30,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:02:30,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 18:02:30,466 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:02:30,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:30,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2001574846, now seen corresponding path program 1 times [2022-11-25 18:02:30,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:30,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673972926] [2022-11-25 18:02:30,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:30,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:02:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:31,921 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 18:02:31,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:31,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673972926] [2022-11-25 18:02:31,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673972926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:31,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:31,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:02:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127259082] [2022-11-25 18:02:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:31,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:02:31,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:31,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:02:31,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:02:31,925 INFO L87 Difference]: Start difference. First operand 277 states and 327 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:33,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:33,738 INFO L93 Difference]: Finished difference Result 292 states and 340 transitions. [2022-11-25 18:02:33,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 18:02:33,739 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-25 18:02:33,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:33,741 INFO L225 Difference]: With dead ends: 292 [2022-11-25 18:02:33,741 INFO L226 Difference]: Without dead ends: 289 [2022-11-25 18:02:33,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:02:33,743 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 371 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:33,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 295 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:02:33,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-25 18:02:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 277. [2022-11-25 18:02:33,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 255 states have internal predecessors, (286), 29 states have call successors, (29), 10 states have call predecessors, (29), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 18:02:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 326 transitions. [2022-11-25 18:02:33,805 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 326 transitions. Word has length 45 [2022-11-25 18:02:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:33,806 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 326 transitions. [2022-11-25 18:02:33,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 9 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 326 transitions. [2022-11-25 18:02:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 18:02:33,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:33,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-11-25 18:02:33,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:02:33,808 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:02:33,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash 438546823, now seen corresponding path program 1 times [2022-11-25 18:02:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:33,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624796696] [2022-11-25 18:02:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:33,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:36,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:02:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:02:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:02:36,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:36,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624796696] [2022-11-25 18:02:36,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624796696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:02:36,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147728141] [2022-11-25 18:02:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:36,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:02:36,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:02:36,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:02:37,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 18:02:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:37,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 199 conjunts are in the unsatisfiable core [2022-11-25 18:02:37,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:02:37,388 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:02:37,389 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 17 treesize of output 21 [2022-11-25 18:02:37,502 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 23 treesize of output 23 [2022-11-25 18:02:37,527 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 23 treesize of output 23 [2022-11-25 18:02:37,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:37,547 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 17 treesize of output 7 [2022-11-25 18:02:37,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:37,553 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 17 treesize of output 7 [2022-11-25 18:02:37,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:37,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:02:37,868 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 18:02:37,868 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 115 [2022-11-25 18:02:37,876 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 88 [2022-11-25 18:02:37,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:37,884 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 33 treesize of output 28 [2022-11-25 18:02:37,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:37,892 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 38 [2022-11-25 18:02:37,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:37,930 INFO L321 Elim1Store]: treesize reduction 48, result has 18.6 percent of original size [2022-11-25 18:02:37,930 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 56 treesize of output 52 [2022-11-25 18:02:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:37,941 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 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-25 18:02:37,953 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 15 treesize of output 19 [2022-11-25 18:02:38,072 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 18:02:38,072 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 77 treesize of output 68 [2022-11-25 18:02:38,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:02:38,092 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-25 18:02:38,092 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 2 case distinctions, treesize of input 54 treesize of output 63 [2022-11-25 18:02:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,364 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-25 18:02:38,364 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 18:02:38,487 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 72 treesize of output 62 [2022-11-25 18:02:38,500 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-25 18:02:38,501 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 1 case distinctions, treesize of input 60 treesize of output 47 [2022-11-25 18:02:38,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,526 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 58 treesize of output 32 [2022-11-25 18:02:38,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:02:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,539 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 18:02:38,539 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 5 new quantified variables, introduced 10 case distinctions, treesize of input 38 treesize of output 20 [2022-11-25 18:02:38,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,826 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-25 18:02:38,827 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 118 [2022-11-25 18:02:38,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,854 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-25 18:02:38,855 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 146 treesize of output 127 [2022-11-25 18:02:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,863 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 0 case distinctions, treesize of input 116 treesize of output 98 [2022-11-25 18:02:38,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:02:38,956 INFO L321 Elim1Store]: treesize reduction 124, result has 38.6 percent of original size [2022-11-25 18:02:38,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 125 [2022-11-25 18:02:38,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:38,979 INFO L321 Elim1Store]: treesize reduction 50, result has 18.0 percent of original size [2022-11-25 18:02:38,979 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 107 treesize of output 75 [2022-11-25 18:02:39,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:39,055 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 16 treesize of output 20 [2022-11-25 18:02:39,353 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-25 18:02:39,353 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 339 treesize of output 268 [2022-11-25 18:02:39,371 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-25 18:02:39,371 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 1 case distinctions, treesize of input 316 treesize of output 209 [2022-11-25 18:02:42,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:02:42,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:42,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:02:42,606 INFO L321 Elim1Store]: treesize reduction 55, result has 43.3 percent of original size [2022-11-25 18:02:42,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 291 treesize of output 193 [2022-11-25 18:02:42,681 INFO L321 Elim1Store]: treesize reduction 37, result has 50.7 percent of original size [2022-11-25 18:02:42,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 156 treesize of output 119 [2022-11-25 18:02:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:43,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:02:44,306 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2006 (Array Int Int)) (v_ArrVal_2005 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2006)) (.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2005)) (.cse4 (+ |c_~#gl_list~0.offset| 4))) (let ((.cse1 (select (select .cse3 |c_~#gl_list~0.base|) .cse4)) (.cse2 (select (select .cse0 |c_~#gl_list~0.base|) .cse4))) (or (not (= (select (select .cse0 .cse1) .cse2) .cse2)) (not (= .cse1 (select (select .cse3 .cse1) .cse2))))))) is different from false [2022-11-25 18:02:44,692 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_list_add___list_add_~next#1.offset_11| Int) (v_ArrVal_2006 (Array Int Int)) (v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2035 Int) (v_ArrVal_2036 (Array Int Int)) (v_ArrVal_2034 (Array Int Int)) (v_ArrVal_2033 (Array Int Int)) (v_ArrVal_2032 (Array Int Int))) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse7 (+ |v_list_add___list_add_~next#1.offset_11| 4))) (let ((.cse1 (store (let ((.cse8 (store |c_#memory_$Pointer$.offset| .cse6 (store (select |c_#memory_$Pointer$.offset| .cse6) .cse7 (+ |c_ULTIMATE.start_gl_insert_~node~1#1.offset| 4))))) (store (store .cse8 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2036) |c_~#gl_list~0.base| (store (select (store .cse8 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2032) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2035))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2006)) (.cse3 (store (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse6 (store (select |c_#memory_$Pointer$.base| .cse6) .cse7 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse5 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2033) |c_~#gl_list~0.base| (store (select (store .cse5 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2034) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2005)) (.cse4 (+ |c_~#gl_list~0.offset| 4))) (let ((.cse2 (select (select .cse3 |c_~#gl_list~0.base|) .cse4)) (.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse4))) (or (not (= .cse0 (select (select .cse1 .cse2) .cse0))) (not (= .cse2 (select (select .cse3 .cse2) .cse0)))))))) is different from false [2022-11-25 18:02:44,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147728141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:02:44,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:02:44,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2022-11-25 18:02:44,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982990864] [2022-11-25 18:02:44,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:02:44,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-25 18:02:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-25 18:02:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1155, Unknown=2, NotChecked=138, Total=1406 [2022-11-25 18:02:44,698 INFO L87 Difference]: Start difference. First operand 277 states and 326 transitions. Second operand has 31 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 21 states have internal predecessors, (79), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:02:56,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:56,213 INFO L93 Difference]: Finished difference Result 447 states and 523 transitions. [2022-11-25 18:02:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:02:56,213 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 21 states have internal predecessors, (79), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2022-11-25 18:02:56,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:56,216 INFO L225 Difference]: With dead ends: 447 [2022-11-25 18:02:56,216 INFO L226 Difference]: Without dead ends: 444 [2022-11-25 18:02:56,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=334, Invalid=2639, Unknown=5, NotChecked=214, Total=3192 [2022-11-25 18:02:56,218 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1129 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 3939 mSolverCounterSat, 162 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 4115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 3939 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:56,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 846 Invalid, 4115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 3939 Invalid, 14 Unknown, 0 Unchecked, 6.4s Time] [2022-11-25 18:02:56,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-25 18:02:56,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 385. [2022-11-25 18:02:56,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 339 states have (on average 1.1858407079646018) internal successors, (402), 355 states have internal predecessors, (402), 35 states have call successors, (35), 14 states have call predecessors, (35), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:02:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 452 transitions. [2022-11-25 18:02:56,316 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 452 transitions. Word has length 46 [2022-11-25 18:02:56,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:56,316 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 452 transitions. [2022-11-25 18:02:56,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 21 states have internal predecessors, (79), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:02:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 452 transitions. [2022-11-25 18:02:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 18:02:56,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:56,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:56,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 18:02:56,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 18:02:56,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:02:56,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:56,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2049301828, now seen corresponding path program 1 times [2022-11-25 18:02:56,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:56,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509207161] [2022-11-25 18:02:56,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:56,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:56,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:02:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:56,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:56,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509207161] [2022-11-25 18:02:56,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509207161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:56,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:56,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:02:56,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909840921] [2022-11-25 18:02:56,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:56,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:02:56,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:56,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:02:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:02:56,644 INFO L87 Difference]: Start difference. First operand 385 states and 452 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:57,181 INFO L93 Difference]: Finished difference Result 387 states and 453 transitions. [2022-11-25 18:02:57,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:02:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-11-25 18:02:57,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:57,184 INFO L225 Difference]: With dead ends: 387 [2022-11-25 18:02:57,184 INFO L226 Difference]: Without dead ends: 384 [2022-11-25 18:02:57,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:02:57,186 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 106 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:57,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 174 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:02:57,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-11-25 18:02:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2022-11-25 18:02:57,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 339 states have (on average 1.1740412979351031) internal successors, (398), 354 states have internal predecessors, (398), 34 states have call successors, (34), 14 states have call predecessors, (34), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:02:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 447 transitions. [2022-11-25 18:02:57,314 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 447 transitions. Word has length 48 [2022-11-25 18:02:57,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:57,315 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 447 transitions. [2022-11-25 18:02:57,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:57,315 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 447 transitions. [2022-11-25 18:02:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-25 18:02:57,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:57,316 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-11-25 18:02:57,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 18:02:57,317 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:02:57,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash -764602366, now seen corresponding path program 1 times [2022-11-25 18:02:57,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:57,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891830415] [2022-11-25 18:02:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:03:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:03:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:03:00,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:03:00,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891830415] [2022-11-25 18:03:00,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891830415] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:03:00,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466329608] [2022-11-25 18:03:00,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:00,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:03:00,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:03:00,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:03:00,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 18:03:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:01,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 178 conjunts are in the unsatisfiable core [2022-11-25 18:03:01,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:03:01,285 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:03:01,286 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 17 treesize of output 21 [2022-11-25 18:03:01,383 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 23 treesize of output 23 [2022-11-25 18:03:01,394 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 16 treesize of output 18 [2022-11-25 18:03:01,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:01,430 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 17 treesize of output 7 [2022-11-25 18:03:01,435 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 9 treesize of output 3 [2022-11-25 18:03:01,735 INFO L321 Elim1Store]: treesize reduction 73, result has 3.9 percent of original size [2022-11-25 18:03:01,736 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 4 case distinctions, treesize of input 101 treesize of output 116 [2022-11-25 18:03:01,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:01,783 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 18:03:01,784 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 94 [2022-11-25 18:03:01,792 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 54 [2022-11-25 18:03:01,823 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 18:03:01,824 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 1 case distinctions, treesize of input 64 treesize of output 58 [2022-11-25 18:03:02,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:02,381 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 113 treesize of output 113 [2022-11-25 18:03:02,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:02,389 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 85 treesize of output 85 [2022-11-25 18:03:02,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:02,396 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 82 [2022-11-25 18:03:02,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:02,402 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 0 case distinctions, treesize of input 79 treesize of output 85 [2022-11-25 18:03:02,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:02,408 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 80 [2022-11-25 18:03:02,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:02,417 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 0 case distinctions, treesize of input 69 treesize of output 73 [2022-11-25 18:03:02,464 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 18:03:02,487 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 23 treesize of output 17 [2022-11-25 18:03:02,525 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 18:03:02,549 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 18:03:02,843 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-25 18:03:02,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 98 [2022-11-25 18:03:03,002 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 88 treesize of output 80 [2022-11-25 18:03:03,009 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 80 treesize of output 76 [2022-11-25 18:03:03,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,055 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 17 treesize of output 7 [2022-11-25 18:03:03,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,060 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 18 treesize of output 8 [2022-11-25 18:03:03,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,331 INFO L321 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2022-11-25 18:03:03,332 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 174 treesize of output 126 [2022-11-25 18:03:03,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,357 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-25 18:03:03,357 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 144 treesize of output 131 [2022-11-25 18:03:03,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 106 [2022-11-25 18:03:03,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,392 INFO L321 Elim1Store]: treesize reduction 34, result has 24.4 percent of original size [2022-11-25 18:03:03,393 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 117 treesize of output 150 [2022-11-25 18:03:03,401 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 18:03:03,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2022-11-25 18:03:03,808 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 18:03:03,809 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 231 treesize of output 228 [2022-11-25 18:03:03,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:03,867 INFO L321 Elim1Store]: treesize reduction 92, result has 24.0 percent of original size [2022-11-25 18:03:03,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 270 treesize of output 252 [2022-11-25 18:03:03,896 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 18:03:03,921 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 5 treesize of output 3 [2022-11-25 18:03:05,043 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 22 treesize of output 10 [2022-11-25 18:03:05,170 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 18:03:05,171 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 51 treesize of output 25 [2022-11-25 18:03:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:03:05,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:03:05,806 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_~#gl_list~0.offset| 4))) (and (forall ((v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse2))) (or (= .cse0 |c_~#gl_list~0.base|) (not (= .cse0 (select (select .cse1 .cse0) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse2) 4)))))))) (forall ((v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse2))) (or (= |c_~#gl_list~0.offset| .cse3) (not (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse4 (select (select .cse5 |c_~#gl_list~0.base|) .cse2))) (= .cse4 (select (select .cse5 .cse4) (+ .cse3 4))))))))))) is different from false [2022-11-25 18:03:06,172 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse6 (+ |c_ULTIMATE.start_gl_insert_~node~1#1.offset| 4)) (.cse3 (+ |c_~#gl_list~0.offset| 4)) (.cse4 (store |c_#memory_$Pointer$.base| .cse5 (store (select |c_#memory_$Pointer$.base| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) 4) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (and (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2512 (Array Int Int)) (v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int)) (v_ArrVal_2514 Int) (v_ArrVal_2518 (Array Int Int))) (let ((.cse0 (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2518) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2515) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2516) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2512) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse6)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse3))) (or (= |c_~#gl_list~0.offset| .cse0) (not (let ((.cse1 (store (store (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2513) |c_~#gl_list~0.base| (store (select (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2517) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2514)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse2 (select (select .cse1 |c_~#gl_list~0.base|) .cse3))) (= (select (select .cse1 .cse2) (+ .cse0 4)) .cse2))))))) (forall ((v_ArrVal_2517 (Array Int Int)) (v_ArrVal_2516 (Array Int Int)) (v_ArrVal_2515 (Array Int Int)) (v_ArrVal_2513 (Array Int Int)) (v_ArrVal_2512 (Array Int Int)) (v_ArrVal_2488 (Array Int Int)) (v_ArrVal_2487 (Array Int Int)) (v_ArrVal_2514 Int) (v_ArrVal_2518 (Array Int Int))) (let ((.cse8 (store (store (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2513) |c_~#gl_list~0.base| (store (select (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2517) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_2514)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2488))) (let ((.cse7 (select (select .cse8 |c_~#gl_list~0.base|) .cse3))) (or (= .cse7 |c_~#gl_list~0.base|) (not (= (select (select .cse8 .cse7) (+ (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2518) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2515) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_2516) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2512) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse6)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2487) |c_~#gl_list~0.base|) .cse3) 4)) .cse7))))))))) is different from false [2022-11-25 18:03:06,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466329608] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:03:06,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:03:06,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 32 [2022-11-25 18:03:06,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100244216] [2022-11-25 18:03:06,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:03:06,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-25 18:03:06,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:03:06,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-25 18:03:06,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1444, Unknown=4, NotChecked=154, Total=1722 [2022-11-25 18:03:06,179 INFO L87 Difference]: Start difference. First operand 384 states and 447 transitions. Second operand has 33 states, 33 states have (on average 2.5757575757575757) internal successors, (85), 23 states have internal predecessors, (85), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:03:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:03:14,232 INFO L93 Difference]: Finished difference Result 443 states and 512 transitions. [2022-11-25 18:03:14,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:03:14,233 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.5757575757575757) internal successors, (85), 23 states have internal predecessors, (85), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2022-11-25 18:03:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:03:14,238 INFO L225 Difference]: With dead ends: 443 [2022-11-25 18:03:14,239 INFO L226 Difference]: Without dead ends: 440 [2022-11-25 18:03:14,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=292, Invalid=2904, Unknown=4, NotChecked=222, Total=3422 [2022-11-25 18:03:14,242 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 848 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 3807 mSolverCounterSat, 128 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 3970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 3807 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:03:14,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 880 Invalid, 3970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 3807 Invalid, 35 Unknown, 0 Unchecked, 5.3s Time] [2022-11-25 18:03:14,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-11-25 18:03:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 387. [2022-11-25 18:03:14,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 342 states have (on average 1.1695906432748537) internal successors, (400), 357 states have internal predecessors, (400), 34 states have call successors, (34), 14 states have call predecessors, (34), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:03:14,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 449 transitions. [2022-11-25 18:03:14,395 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 449 transitions. Word has length 49 [2022-11-25 18:03:14,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:03:14,396 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 449 transitions. [2022-11-25 18:03:14,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.5757575757575757) internal successors, (85), 23 states have internal predecessors, (85), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:03:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 449 transitions. [2022-11-25 18:03:14,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 18:03:14,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:03:14,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:03:14,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:03:14,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 18:03:14,604 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:03:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:03:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2059695343, now seen corresponding path program 1 times [2022-11-25 18:03:14,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:03:14,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899914204] [2022-11-25 18:03:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:14,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:03:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:03:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:14,821 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 18:03:14,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:03:14,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899914204] [2022-11-25 18:03:14,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899914204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:03:14,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:03:14,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:03:14,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066770195] [2022-11-25 18:03:14,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:03:14,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:03:14,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:03:14,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:03:14,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:03:14,824 INFO L87 Difference]: Start difference. First operand 387 states and 449 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:03:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:03:15,609 INFO L93 Difference]: Finished difference Result 389 states and 450 transitions. [2022-11-25 18:03:15,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:03:15,610 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-11-25 18:03:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:03:15,612 INFO L225 Difference]: With dead ends: 389 [2022-11-25 18:03:15,612 INFO L226 Difference]: Without dead ends: 386 [2022-11-25 18:03:15,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-25 18:03:15,613 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 163 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:03:15,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 306 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:03:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-25 18:03:15,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-11-25 18:03:15,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 342 states have (on average 1.1578947368421053) internal successors, (396), 356 states have internal predecessors, (396), 33 states have call successors, (33), 14 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:03:15,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 444 transitions. [2022-11-25 18:03:15,750 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 444 transitions. Word has length 51 [2022-11-25 18:03:15,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:03:15,751 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 444 transitions. [2022-11-25 18:03:15,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:03:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 444 transitions. [2022-11-25 18:03:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 18:03:15,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:03:15,752 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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 18:03:15,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 18:03:15,752 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:03:15,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:03:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2029277591, now seen corresponding path program 1 times [2022-11-25 18:03:15,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:03:15,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171789372] [2022-11-25 18:03:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:15,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:03:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:03:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:03:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:03:18,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:03:18,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171789372] [2022-11-25 18:03:18,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171789372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:03:18,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270681298] [2022-11-25 18:03:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:18,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:03:18,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:03:18,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:03:18,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 18:03:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:18,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-25 18:03:18,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:03:18,476 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:03:18,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:03:18,552 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 14 treesize of output 16 [2022-11-25 18:03:18,562 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 14 treesize of output 16 [2022-11-25 18:03:18,580 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 7 treesize of output 3 [2022-11-25 18:03:18,584 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 7 treesize of output 3 [2022-11-25 18:03:18,736 INFO L321 Elim1Store]: treesize reduction 77, result has 3.8 percent of original size [2022-11-25 18:03:18,737 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 4 case distinctions, treesize of input 54 treesize of output 68 [2022-11-25 18:03:18,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:18,744 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 30 [2022-11-25 18:03:18,749 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 18:03:18,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:18,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 27 [2022-11-25 18:03:18,824 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 18:03:18,824 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 40 treesize of output 37 [2022-11-25 18:03:18,938 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 18:03:18,938 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 11 treesize of output 11 [2022-11-25 18:03:19,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2022-11-25 18:03:19,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:19,025 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 30 treesize of output 12 [2022-11-25 18:03:19,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:19,199 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-25 18:03:19,200 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 57 [2022-11-25 18:03:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:19,229 INFO L321 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2022-11-25 18:03:19,230 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 57 treesize of output 56 [2022-11-25 18:03:19,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:19,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2022-11-25 18:03:19,251 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 3 [2022-11-25 18:03:19,349 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-25 18:03:19,350 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 52 treesize of output 58 [2022-11-25 18:03:19,709 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 24 treesize of output 12 [2022-11-25 18:03:19,716 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 7 treesize of output 3 [2022-11-25 18:03:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:03:19,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:03:19,991 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 19 treesize of output 7 [2022-11-25 18:03:20,131 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2949 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_2949) |c_~#gl_list~0.base|) (+ |c_~#gl_list~0.offset| 4)) 0))) is different from false [2022-11-25 18:03:20,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270681298] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:03:20,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:03:20,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2022-11-25 18:03:20,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949200535] [2022-11-25 18:03:20,383 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:03:20,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-25 18:03:20,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:03:20,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-25 18:03:20,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1129, Unknown=8, NotChecked=68, Total=1332 [2022-11-25 18:03:20,385 INFO L87 Difference]: Start difference. First operand 386 states and 444 transitions. Second operand has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:03:25,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:03:25,237 INFO L93 Difference]: Finished difference Result 445 states and 509 transitions. [2022-11-25 18:03:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 18:03:25,238 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2022-11-25 18:03:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:03:25,241 INFO L225 Difference]: With dead ends: 445 [2022-11-25 18:03:25,241 INFO L226 Difference]: Without dead ends: 442 [2022-11-25 18:03:25,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=448, Invalid=2955, Unknown=23, NotChecked=114, Total=3540 [2022-11-25 18:03:25,244 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1137 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 175 mSolverCounterUnsat, 79 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 79 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:03:25,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 522 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2281 Invalid, 79 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 18:03:25,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-11-25 18:03:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 395. [2022-11-25 18:03:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 351 states have (on average 1.1538461538461537) internal successors, (405), 365 states have internal predecessors, (405), 33 states have call successors, (33), 14 states have call predecessors, (33), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:03:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 453 transitions. [2022-11-25 18:03:25,360 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 453 transitions. Word has length 52 [2022-11-25 18:03:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:03:25,360 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 453 transitions. [2022-11-25 18:03:25,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:03:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 453 transitions. [2022-11-25 18:03:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 18:03:25,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:03:25,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:03:25,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:03:25,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:03:25,570 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:03:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:03:25,571 INFO L85 PathProgramCache]: Analyzing trace with hash -617053959, now seen corresponding path program 1 times [2022-11-25 18:03:25,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:03:25,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080407323] [2022-11-25 18:03:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:25,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:03:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:03:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:25,630 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 18:03:25,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:03:25,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080407323] [2022-11-25 18:03:25,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080407323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:03:25,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:03:25,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:03:25,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406871176] [2022-11-25 18:03:25,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:03:25,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:03:25,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:03:25,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:03:25,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:03:25,633 INFO L87 Difference]: Start difference. First operand 395 states and 453 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:03:25,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:03:25,951 INFO L93 Difference]: Finished difference Result 397 states and 454 transitions. [2022-11-25 18:03:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:03:25,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-25 18:03:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:03:25,954 INFO L225 Difference]: With dead ends: 397 [2022-11-25 18:03:25,955 INFO L226 Difference]: Without dead ends: 394 [2022-11-25 18:03:25,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:03:25,956 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:03:25,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 108 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 18:03:25,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-25 18:03:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2022-11-25 18:03:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 351 states have (on average 1.1424501424501425) internal successors, (401), 364 states have internal predecessors, (401), 32 states have call successors, (32), 14 states have call predecessors, (32), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:03:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 448 transitions. [2022-11-25 18:03:26,096 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 448 transitions. Word has length 53 [2022-11-25 18:03:26,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:03:26,097 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 448 transitions. [2022-11-25 18:03:26,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:03:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 448 transitions. [2022-11-25 18:03:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 18:03:26,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:03:26,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-25 18:03:26,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 18:03:26,099 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:03:26,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:03:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1943731347, now seen corresponding path program 1 times [2022-11-25 18:03:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:03:26,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140917348] [2022-11-25 18:03:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:03:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:03:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:03:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:03:29,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:03:29,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140917348] [2022-11-25 18:03:29,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140917348] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:03:29,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563008229] [2022-11-25 18:03:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:29,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:03:29,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:03:29,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:03:29,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 18:03:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:29,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 196 conjunts are in the unsatisfiable core [2022-11-25 18:03:29,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:03:29,867 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:03:29,867 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 17 treesize of output 21 [2022-11-25 18:03:29,967 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 16 treesize of output 18 [2022-11-25 18:03:29,975 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 23 treesize of output 23 [2022-11-25 18:03:29,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:29,994 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 17 treesize of output 7 [2022-11-25 18:03:30,005 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 9 treesize of output 3 [2022-11-25 18:03:30,314 INFO L321 Elim1Store]: treesize reduction 73, result has 3.9 percent of original size [2022-11-25 18:03:30,315 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 4 case distinctions, treesize of input 116 treesize of output 120 [2022-11-25 18:03:30,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,361 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 18:03:30,362 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 100 [2022-11-25 18:03:30,389 INFO L321 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2022-11-25 18:03:30,390 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 51 treesize of output 45 [2022-11-25 18:03:30,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,400 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 39 treesize of output 34 [2022-11-25 18:03:30,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,408 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 64 treesize of output 38 [2022-11-25 18:03:30,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,435 INFO L321 Elim1Store]: treesize reduction 30, result has 40.0 percent of original size [2022-11-25 18:03:30,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 55 [2022-11-25 18:03:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,462 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-25 18:03:30,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 44 [2022-11-25 18:03:30,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,675 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 84 [2022-11-25 18:03:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:30,684 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 73 treesize of output 73 [2022-11-25 18:03:31,021 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-25 18:03:31,022 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 18:03:31,201 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 18:03:31,202 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 103 treesize of output 95 [2022-11-25 18:03:31,215 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 79 treesize of output 74 [2022-11-25 18:03:31,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,289 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:03:31,290 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 89 treesize of output 52 [2022-11-25 18:03:31,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,300 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2022-11-25 18:03:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,628 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-25 18:03:31,628 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 192 treesize of output 135 [2022-11-25 18:03:31,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,664 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-25 18:03:31,664 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 2 case distinctions, treesize of input 165 treesize of output 141 [2022-11-25 18:03:31,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,676 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 0 case distinctions, treesize of input 108 treesize of output 87 [2022-11-25 18:03:31,687 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 82 treesize of output 76 [2022-11-25 18:03:31,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 51 [2022-11-25 18:03:31,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-11-25 18:03:31,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:31,726 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 42 [2022-11-25 18:03:32,043 INFO L321 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-11-25 18:03:32,043 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 197 treesize of output 193 [2022-11-25 18:03:32,078 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-25 18:03:32,079 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 188 treesize of output 180 [2022-11-25 18:03:32,260 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 18:03:32,554 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 18:03:35,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:35,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:03:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:35,335 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-25 18:03:35,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 102 treesize of output 51 [2022-11-25 18:03:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:35,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:35,368 INFO L321 Elim1Store]: treesize reduction 24, result has 11.1 percent of original size [2022-11-25 18:03:35,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 27 [2022-11-25 18:03:35,438 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:03:35,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:03:36,009 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_~#gl_list~0.offset| 4))) (and (forall ((v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421) |c_~#gl_list~0.base|) .cse3))) (or (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422))) (let ((.cse0 (+ (select (select .cse1 |c_~#gl_list~0.base|) .cse3) 8))) (= .cse0 (select (select .cse1 .cse2) .cse0)))) (= .cse2 |c_~#gl_list~0.base|)))) (forall ((v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422))) (let ((.cse6 (select (select .cse5 |c_~#gl_list~0.base|) .cse3))) (or (let ((.cse4 (+ .cse6 8))) (= .cse4 (select (select .cse5 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421) |c_~#gl_list~0.base|) .cse3)) .cse4))) (= |c_~#gl_list~0.offset| .cse6))))) (forall ((v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int))) (let ((.cse9 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422) |c_~#gl_list~0.base|) .cse3))) (or (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421))) (let ((.cse7 (select (select .cse8 |c_~#gl_list~0.base|) .cse3))) (= .cse7 (select (select .cse8 .cse7) (+ .cse9 8))))) (= |c_~#gl_list~0.offset| .cse9)))) (forall ((v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int))) (let ((.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421))) (let ((.cse10 (select (select .cse11 |c_~#gl_list~0.base|) .cse3))) (or (= .cse10 |c_~#gl_list~0.base|) (= .cse10 (select (select .cse11 .cse10) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422) |c_~#gl_list~0.base|) .cse3) 8))))))))) is different from false [2022-11-25 18:03:36,570 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse8 (select |c_#memory_$Pointer$.offset| .cse5)) (.cse9 (+ |c_ULTIMATE.start_gl_insert_~node~1#1.offset| 4)) (.cse6 (select |c_#memory_$Pointer$.base| .cse5)) (.cse3 (+ |c_~#gl_list~0.offset| 4)) (.cse10 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (and (forall ((|v_list_add___list_add_~next#1.offset_20| Int)) (or (forall ((v_ArrVal_3450 (Array Int Int)) (v_ArrVal_3451 (Array Int Int)) (v_ArrVal_3452 (Array Int Int)) (v_ArrVal_3447 Int) (v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int)) (v_ArrVal_3448 (Array Int Int)) (v_ArrVal_3449 (Array Int Int))) (let ((.cse7 (+ |v_list_add___list_add_~next#1.offset_20| 4))) (let ((.cse2 (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 (store .cse8 .cse7 .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3450) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_3451) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3449) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422) |c_~#gl_list~0.base|) .cse3))) (or (let ((.cse1 (store (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse5 (store .cse6 .cse7 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3448) |c_~#gl_list~0.base| (store (select (store .cse4 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3452) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3447))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse3))) (= .cse0 (select (select .cse1 .cse0) (+ .cse2 8))))) (= |c_~#gl_list~0.offset| .cse2))))) (< .cse10 |v_list_add___list_add_~next#1.offset_20|))) (forall ((|v_list_add___list_add_~next#1.offset_20| Int)) (or (forall ((v_ArrVal_3450 (Array Int Int)) (v_ArrVal_3451 (Array Int Int)) (v_ArrVal_3452 (Array Int Int)) (v_ArrVal_3447 Int) (v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int)) (v_ArrVal_3448 (Array Int Int)) (v_ArrVal_3449 (Array Int Int))) (let ((.cse13 (+ |v_list_add___list_add_~next#1.offset_20| 4))) (let ((.cse12 (store (let ((.cse14 (store |c_#memory_$Pointer$.base| .cse5 (store .cse6 .cse13 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse14 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3448) |c_~#gl_list~0.base| (store (select (store .cse14 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3452) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3447))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421))) (let ((.cse11 (select (select .cse12 |c_~#gl_list~0.base|) .cse3))) (or (= .cse11 (select (select .cse12 .cse11) (+ (select (select (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 (store .cse8 .cse13 .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3450) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_3451) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3449) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422) |c_~#gl_list~0.base|) .cse3) 8))) (= .cse11 |c_~#gl_list~0.base|)))))) (< .cse10 |v_list_add___list_add_~next#1.offset_20|))) (forall ((|v_list_add___list_add_~next#1.offset_20| Int)) (or (forall ((v_ArrVal_3450 (Array Int Int)) (v_ArrVal_3451 (Array Int Int)) (v_ArrVal_3452 (Array Int Int)) (v_ArrVal_3447 Int) (v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int)) (v_ArrVal_3448 (Array Int Int)) (v_ArrVal_3449 (Array Int Int))) (let ((.cse17 (+ |v_list_add___list_add_~next#1.offset_20| 4))) (let ((.cse15 (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 (store .cse8 .cse17 .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3450) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_3451) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3449) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422))) (let ((.cse19 (select (select .cse15 |c_~#gl_list~0.base|) .cse3))) (or (let ((.cse18 (+ .cse19 8))) (= (select (select .cse15 (select (select (store (let ((.cse16 (store |c_#memory_$Pointer$.base| .cse5 (store .cse6 .cse17 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse16 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3448) |c_~#gl_list~0.base| (store (select (store .cse16 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3452) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3447))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421) |c_~#gl_list~0.base|) .cse3)) .cse18) .cse18)) (= |c_~#gl_list~0.offset| .cse19)))))) (< .cse10 |v_list_add___list_add_~next#1.offset_20|))) (forall ((|v_list_add___list_add_~next#1.offset_20| Int)) (or (forall ((v_ArrVal_3450 (Array Int Int)) (v_ArrVal_3451 (Array Int Int)) (v_ArrVal_3452 (Array Int Int)) (v_ArrVal_3447 Int) (v_ArrVal_3421 (Array Int Int)) (v_ArrVal_3422 (Array Int Int)) (v_ArrVal_3448 (Array Int Int)) (v_ArrVal_3449 (Array Int Int))) (let ((.cse23 (+ |v_list_add___list_add_~next#1.offset_20| 4))) (let ((.cse21 (select (select (store (let ((.cse24 (store |c_#memory_$Pointer$.base| .cse5 (store .cse6 .cse23 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse24 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3448) |c_~#gl_list~0.base| (store (select (store .cse24 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3452) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3447))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3421) |c_~#gl_list~0.base|) .cse3))) (or (let ((.cse20 (store (store (store (store |c_#memory_$Pointer$.offset| .cse5 (store .cse8 .cse23 .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3450) |c_~#gl_list~0.base| (store (select (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_3451) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3449) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse9)) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3422))) (let ((.cse22 (+ (select (select .cse20 |c_~#gl_list~0.base|) .cse3) 8))) (= (select (select .cse20 .cse21) .cse22) .cse22))) (= .cse21 |c_~#gl_list~0.base|))))) (< .cse10 |v_list_add___list_add_~next#1.offset_20|)))))) is different from false [2022-11-25 18:03:36,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563008229] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:03:36,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:03:36,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 34 [2022-11-25 18:03:36,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022088857] [2022-11-25 18:03:36,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:03:36,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 18:03:36,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:03:36,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 18:03:36,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1371, Unknown=3, NotChecked=150, Total=1640 [2022-11-25 18:03:36,579 INFO L87 Difference]: Start difference. First operand 394 states and 448 transitions. Second operand has 35 states, 35 states have (on average 2.7714285714285714) internal successors, (97), 25 states have internal predecessors, (97), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:03:48,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:03:48,233 INFO L93 Difference]: Finished difference Result 444 states and 500 transitions. [2022-11-25 18:03:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 18:03:48,239 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.7714285714285714) internal successors, (97), 25 states have internal predecessors, (97), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2022-11-25 18:03:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:03:48,241 INFO L225 Difference]: With dead ends: 444 [2022-11-25 18:03:48,241 INFO L226 Difference]: Without dead ends: 435 [2022-11-25 18:03:48,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=461, Invalid=3830, Unknown=7, NotChecked=258, Total=4556 [2022-11-25 18:03:48,243 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 988 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 4109 mSolverCounterSat, 108 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4109 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:03:48,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 937 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4109 Invalid, 22 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 18:03:48,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-11-25 18:03:48,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 421. [2022-11-25 18:03:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 378 states have (on average 1.1322751322751323) internal successors, (428), 391 states have internal predecessors, (428), 32 states have call successors, (32), 14 states have call predecessors, (32), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:03:48,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 475 transitions. [2022-11-25 18:03:48,356 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 475 transitions. Word has length 55 [2022-11-25 18:03:48,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:03:48,357 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 475 transitions. [2022-11-25 18:03:48,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.7714285714285714) internal successors, (97), 25 states have internal predecessors, (97), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:03:48,357 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 475 transitions. [2022-11-25 18:03:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 18:03:48,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:03:48,358 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-11-25 18:03:48,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 18:03:48,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:03:48,565 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:03:48,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:03:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1129884476, now seen corresponding path program 1 times [2022-11-25 18:03:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:03:48,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107690533] [2022-11-25 18:03:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:48,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:03:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:51,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:03:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:51,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:03:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:52,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:03:52,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:03:52,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107690533] [2022-11-25 18:03:52,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107690533] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:03:52,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176517442] [2022-11-25 18:03:52,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:03:52,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:03:52,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:03:52,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:03:52,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 18:03:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:03:52,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 201 conjunts are in the unsatisfiable core [2022-11-25 18:03:52,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:03:52,954 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:03:52,954 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 17 treesize of output 21 [2022-11-25 18:03:53,056 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 16 treesize of output 18 [2022-11-25 18:03:53,063 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 23 treesize of output 23 [2022-11-25 18:03:53,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:53,098 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 17 treesize of output 7 [2022-11-25 18:03:53,108 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 9 treesize of output 3 [2022-11-25 18:03:53,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:53,486 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-25 18:03:53,486 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 94 [2022-11-25 18:03:53,496 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 56 [2022-11-25 18:03:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:53,506 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 50 treesize of output 43 [2022-11-25 18:03:53,532 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 18:03:53,532 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 1 case distinctions, treesize of input 72 treesize of output 60 [2022-11-25 18:03:53,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:53,568 INFO L321 Elim1Store]: treesize reduction 30, result has 40.0 percent of original size [2022-11-25 18:03:53,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 55 [2022-11-25 18:03:55,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:55,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:55,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:55,938 INFO L321 Elim1Store]: treesize reduction 77, result has 10.5 percent of original size [2022-11-25 18:03:55,938 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 191 treesize of output 149 [2022-11-25 18:03:55,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:55,948 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 104 treesize of output 98 [2022-11-25 18:03:55,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:55,958 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 16 treesize of output 20 [2022-11-25 18:03:55,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:55,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:55,990 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-25 18:03:55,991 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 1 case distinctions, treesize of input 23 treesize of output 38 [2022-11-25 18:03:56,006 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 15 treesize of output 23 [2022-11-25 18:03:56,296 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-25 18:03:56,296 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 18:03:56,468 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 18:03:56,468 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 106 treesize of output 100 [2022-11-25 18:03:56,478 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 75 treesize of output 74 [2022-11-25 18:03:56,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,523 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:03:56,524 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 92 treesize of output 59 [2022-11-25 18:03:56,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,529 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2022-11-25 18:03:56,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,831 INFO L321 Elim1Store]: treesize reduction 70, result has 25.5 percent of original size [2022-11-25 18:03:56,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 206 treesize of output 149 [2022-11-25 18:03:56,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,855 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-25 18:03:56,855 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 180 treesize of output 155 [2022-11-25 18:03:56,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 126 [2022-11-25 18:03:56,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 89 [2022-11-25 18:03:56,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,891 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 91 treesize of output 81 [2022-11-25 18:03:56,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:56,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2022-11-25 18:03:57,195 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 18:03:57,195 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 165 treesize of output 158 [2022-11-25 18:03:57,234 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-11-25 18:03:57,235 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 168 treesize of output 166 [2022-11-25 18:03:59,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:59,849 INFO L321 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2022-11-25 18:03:59,849 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 5 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 24 [2022-11-25 18:03:59,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:59,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:03:59,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:03:59,866 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-25 18:03:59,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 28 [2022-11-25 18:03:59,938 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:03:59,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:04:00,586 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_~#gl_list~0.offset| 4))) (and (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse2))) (or (= (+ .cse0 8) (select (select .cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816) |c_~#gl_list~0.base|) .cse2)) (+ .cse0 12))) (= |c_~#gl_list~0.offset| .cse0))))) (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int))) (let ((.cse5 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816) |c_~#gl_list~0.base|) .cse2))) (or (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817))) (let ((.cse3 (select (select .cse4 |c_~#gl_list~0.base|) .cse2))) (= (+ .cse3 8) (select (select .cse4 .cse5) (+ .cse3 12))))) (= .cse5 |c_~#gl_list~0.base|)))) (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816))) (let ((.cse7 (select (select .cse6 |c_~#gl_list~0.base|) .cse2))) (or (= (select (select .cse6 .cse7) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817) |c_~#gl_list~0.base|) .cse2) 12)) .cse7) (= .cse7 |c_~#gl_list~0.base|))))) (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int))) (let ((.cse10 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817) |c_~#gl_list~0.base|) .cse2))) (or (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816))) (let ((.cse9 (select (select .cse8 |c_~#gl_list~0.base|) .cse2))) (= (select (select .cse8 .cse9) (+ .cse10 12)) .cse9))) (= |c_~#gl_list~0.offset| .cse10)))))) is different from false [2022-11-25 18:04:01,168 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse10 (select |c_#memory_$Pointer$.base| .cse5)) (.cse6 (select |c_#memory_$Pointer$.offset| .cse5)) (.cse4 (+ |c_ULTIMATE.start_gl_insert_~node~1#1.offset| 4)) (.cse8 (+ |c_~#gl_list~0.offset| 4))) (and (forall ((|v_list_add___list_add_~next#1.offset_23| Int)) (or (< .cse0 |v_list_add___list_add_~next#1.offset_23|) (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int)) (v_ArrVal_3844 Int) (v_ArrVal_3845 (Array Int Int)) (v_ArrVal_3846 (Array Int Int)) (v_ArrVal_3847 (Array Int Int)) (v_ArrVal_3848 (Array Int Int))) (let ((.cse7 (+ |v_list_add___list_add_~next#1.offset_23| 4))) (let ((.cse1 (store (let ((.cse9 (store |c_#memory_$Pointer$.base| .cse5 (store .cse10 .cse7 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse9 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3845) |c_~#gl_list~0.base| (store (select (store .cse9 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3848) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3844))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816))) (let ((.cse2 (select (select .cse1 |c_~#gl_list~0.base|) .cse8))) (or (= (select (select .cse1 .cse2) (+ (select (select (store (let ((.cse3 (store |c_#memory_$Pointer$.offset| .cse5 (store .cse6 .cse7 .cse4)))) (store (store .cse3 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3846) |c_~#gl_list~0.base| (store (select (store .cse3 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3847) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse4))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817) |c_~#gl_list~0.base|) .cse8) 12)) .cse2) (= .cse2 |c_~#gl_list~0.base|)))))))) (forall ((|v_list_add___list_add_~next#1.offset_23| Int)) (or (< .cse0 |v_list_add___list_add_~next#1.offset_23|) (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int)) (v_ArrVal_3844 Int) (v_ArrVal_3845 (Array Int Int)) (v_ArrVal_3846 (Array Int Int)) (v_ArrVal_3847 (Array Int Int)) (v_ArrVal_3848 (Array Int Int))) (let ((.cse14 (+ |v_list_add___list_add_~next#1.offset_23| 4))) (let ((.cse12 (store (let ((.cse15 (store |c_#memory_$Pointer$.offset| .cse5 (store .cse6 .cse14 .cse4)))) (store (store .cse15 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3846) |c_~#gl_list~0.base| (store (select (store .cse15 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3847) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse4))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817))) (let ((.cse11 (select (select .cse12 |c_~#gl_list~0.base|) .cse8))) (or (= |c_~#gl_list~0.offset| .cse11) (= (select (select .cse12 (select (select (store (let ((.cse13 (store |c_#memory_$Pointer$.base| .cse5 (store .cse10 .cse14 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse13 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3845) |c_~#gl_list~0.base| (store (select (store .cse13 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3848) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3844))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816) |c_~#gl_list~0.base|) .cse8)) (+ .cse11 12)) (+ .cse11 8))))))))) (forall ((|v_list_add___list_add_~next#1.offset_23| Int)) (or (< .cse0 |v_list_add___list_add_~next#1.offset_23|) (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int)) (v_ArrVal_3844 Int) (v_ArrVal_3845 (Array Int Int)) (v_ArrVal_3846 (Array Int Int)) (v_ArrVal_3847 (Array Int Int)) (v_ArrVal_3848 (Array Int Int))) (let ((.cse20 (+ |v_list_add___list_add_~next#1.offset_23| 4))) (let ((.cse16 (select (select (store (let ((.cse21 (store |c_#memory_$Pointer$.base| .cse5 (store .cse10 .cse20 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse21 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3845) |c_~#gl_list~0.base| (store (select (store .cse21 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3848) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3844))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816) |c_~#gl_list~0.base|) .cse8))) (or (= .cse16 |c_~#gl_list~0.base|) (let ((.cse17 (store (let ((.cse19 (store |c_#memory_$Pointer$.offset| .cse5 (store .cse6 .cse20 .cse4)))) (store (store .cse19 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3846) |c_~#gl_list~0.base| (store (select (store .cse19 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3847) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse4))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817))) (let ((.cse18 (select (select .cse17 |c_~#gl_list~0.base|) .cse8))) (= (select (select .cse17 .cse16) (+ .cse18 12)) (+ .cse18 8)))))))))) (forall ((|v_list_add___list_add_~next#1.offset_23| Int)) (or (< .cse0 |v_list_add___list_add_~next#1.offset_23|) (forall ((v_ArrVal_3816 (Array Int Int)) (v_ArrVal_3817 (Array Int Int)) (v_ArrVal_3844 Int) (v_ArrVal_3845 (Array Int Int)) (v_ArrVal_3846 (Array Int Int)) (v_ArrVal_3847 (Array Int Int)) (v_ArrVal_3848 (Array Int Int))) (let ((.cse26 (+ |v_list_add___list_add_~next#1.offset_23| 4))) (let ((.cse24 (select (select (store (let ((.cse27 (store |c_#memory_$Pointer$.offset| .cse5 (store .cse6 .cse26 .cse4)))) (store (store .cse27 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3846) |c_~#gl_list~0.base| (store (select (store .cse27 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3847) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse4))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3817) |c_~#gl_list~0.base|) .cse8))) (or (let ((.cse22 (store (let ((.cse25 (store |c_#memory_$Pointer$.base| .cse5 (store .cse10 .cse26 |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store (store .cse25 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3845) |c_~#gl_list~0.base| (store (select (store .cse25 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3848) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_3844))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_3816))) (let ((.cse23 (select (select .cse22 |c_~#gl_list~0.base|) .cse8))) (= (select (select .cse22 .cse23) (+ .cse24 12)) .cse23))) (= |c_~#gl_list~0.offset| .cse24)))))))))) is different from false [2022-11-25 18:04:01,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176517442] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:04:01,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:04:01,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 34 [2022-11-25 18:04:01,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624741440] [2022-11-25 18:04:01,179 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:04:01,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 18:04:01,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:04:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 18:04:01,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1365, Unknown=9, NotChecked=150, Total=1640 [2022-11-25 18:04:01,181 INFO L87 Difference]: Start difference. First operand 421 states and 475 transitions. Second operand has 35 states, 35 states have (on average 2.942857142857143) internal successors, (103), 25 states have internal predecessors, (103), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:04:15,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:04:15,145 INFO L93 Difference]: Finished difference Result 437 states and 488 transitions. [2022-11-25 18:04:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 18:04:15,145 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.942857142857143) internal successors, (103), 25 states have internal predecessors, (103), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2022-11-25 18:04:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:04:15,147 INFO L225 Difference]: With dead ends: 437 [2022-11-25 18:04:15,147 INFO L226 Difference]: Without dead ends: 434 [2022-11-25 18:04:15,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=461, Invalid=3822, Unknown=15, NotChecked=258, Total=4556 [2022-11-25 18:04:15,148 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1063 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 4402 mSolverCounterSat, 105 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 4402 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:04:15,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 997 Invalid, 4531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 4402 Invalid, 24 Unknown, 0 Unchecked, 8.0s Time] [2022-11-25 18:04:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-11-25 18:04:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 421. [2022-11-25 18:04:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 378 states have (on average 1.126984126984127) internal successors, (426), 391 states have internal predecessors, (426), 32 states have call successors, (32), 14 states have call predecessors, (32), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:04:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 473 transitions. [2022-11-25 18:04:15,330 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 473 transitions. Word has length 58 [2022-11-25 18:04:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:04:15,330 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 473 transitions. [2022-11-25 18:04:15,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.942857142857143) internal successors, (103), 25 states have internal predecessors, (103), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:04:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 473 transitions. [2022-11-25 18:04:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 18:04:15,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:04:15,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 18:04:15,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 18:04:15,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:04:15,544 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:04:15,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:04:15,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1691144517, now seen corresponding path program 2 times [2022-11-25 18:04:15,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:04:15,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914697706] [2022-11-25 18:04:15,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:04:15,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:04:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:04:19,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:04:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:04:19,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:04:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:04:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 18:04:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:04:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:04:20,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:04:20,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914697706] [2022-11-25 18:04:20,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914697706] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:04:20,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347451849] [2022-11-25 18:04:20,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:04:20,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:04:20,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:04:20,446 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:04:20,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 18:04:21,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:04:21,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:04:21,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 274 conjunts are in the unsatisfiable core [2022-11-25 18:04:21,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:04:21,249 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:04:21,250 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 17 treesize of output 21 [2022-11-25 18:04:21,344 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 23 treesize of output 23 [2022-11-25 18:04:21,355 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 16 treesize of output 18 [2022-11-25 18:04:21,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:21,370 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 17 treesize of output 7 [2022-11-25 18:04:21,381 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 9 treesize of output 3 [2022-11-25 18:04:21,734 INFO L321 Elim1Store]: treesize reduction 87, result has 3.3 percent of original size [2022-11-25 18:04:21,734 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 4 case distinctions, treesize of input 137 treesize of output 123 [2022-11-25 18:04:21,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:21,790 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 18:04:21,791 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 108 [2022-11-25 18:04:21,801 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 56 [2022-11-25 18:04:21,830 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 18:04:21,831 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 1 case distinctions, treesize of input 72 treesize of output 60 [2022-11-25 18:04:21,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:21,839 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 81 treesize of output 53 [2022-11-25 18:04:21,843 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 15 treesize of output 19 [2022-11-25 18:04:21,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:21,876 INFO L321 Elim1Store]: treesize reduction 30, result has 40.0 percent of original size [2022-11-25 18:04:21,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 55 [2022-11-25 18:04:22,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:04:22,247 INFO L321 Elim1Store]: treesize reduction 97, result has 8.5 percent of original size [2022-11-25 18:04:22,247 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 6 case distinctions, treesize of input 186 treesize of output 151 [2022-11-25 18:04:22,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,260 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 92 treesize of output 92 [2022-11-25 18:04:22,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,269 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 16 treesize of output 20 [2022-11-25 18:04:22,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,298 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-25 18:04:22,298 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 1 case distinctions, treesize of input 23 treesize of output 38 [2022-11-25 18:04:22,661 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 18:04:22,662 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 18:04:22,855 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 18:04:22,855 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 100 treesize of output 96 [2022-11-25 18:04:22,867 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 64 treesize of output 60 [2022-11-25 18:04:22,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:04:22,934 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 18:04:22,934 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 2 case distinctions, treesize of input 94 treesize of output 61 [2022-11-25 18:04:22,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:22,941 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 41 treesize of output 21 [2022-11-25 18:04:23,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:23,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:04:23,367 INFO L321 Elim1Store]: treesize reduction 78, result has 23.5 percent of original size [2022-11-25 18:04:23,367 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 200 treesize of output 147 [2022-11-25 18:04:23,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:23,391 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-25 18:04:23,392 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 174 treesize of output 151 [2022-11-25 18:04:23,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:23,400 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 0 case distinctions, treesize of input 144 treesize of output 124 [2022-11-25 18:04:23,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:23,408 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 0 case distinctions, treesize of input 98 treesize of output 79 [2022-11-25 18:04:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:23,417 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 84 treesize of output 76 [2022-11-25 18:04:23,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:23,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2022-11-25 18:04:23,811 INFO L321 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2022-11-25 18:04:23,812 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 184 [2022-11-25 18:04:23,853 INFO L321 Elim1Store]: treesize reduction 90, result has 21.7 percent of original size [2022-11-25 18:04:23,854 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 178 treesize of output 190 [2022-11-25 18:04:24,695 INFO L321 Elim1Store]: treesize reduction 41, result has 62.4 percent of original size [2022-11-25 18:04:24,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 184 treesize of output 231 [2022-11-25 18:04:25,235 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 18:04:25,236 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 185 treesize of output 168 [2022-11-25 18:04:25,265 INFO L321 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2022-11-25 18:04:25,266 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 4 case distinctions, treesize of input 162 treesize of output 170 [2022-11-25 18:04:25,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:25,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:04:25,599 INFO L321 Elim1Store]: treesize reduction 52, result has 59.7 percent of original size [2022-11-25 18:04:25,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 179 treesize of output 172 [2022-11-25 18:04:25,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:25,674 INFO L321 Elim1Store]: treesize reduction 8, result has 87.7 percent of original size [2022-11-25 18:04:25,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 88 treesize of output 116 [2022-11-25 18:04:28,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:28,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:28,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:28,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:04:28,545 INFO L321 Elim1Store]: treesize reduction 184, result has 14.4 percent of original size [2022-11-25 18:04:28,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 286 treesize of output 223 [2022-11-25 18:04:28,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:28,650 INFO L321 Elim1Store]: treesize reduction 120, result has 26.4 percent of original size [2022-11-25 18:04:28,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 272 [2022-11-25 18:04:28,726 INFO L321 Elim1Store]: treesize reduction 247, result has 11.2 percent of original size [2022-11-25 18:04:28,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 196 treesize of output 234 [2022-11-25 18:04:28,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:28,824 INFO L321 Elim1Store]: treesize reduction 135, result has 32.5 percent of original size [2022-11-25 18:04:28,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 213 treesize of output 229 [2022-11-25 18:04:30,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:30,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 120 [2022-11-25 18:04:30,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:30,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 373 [2022-11-25 18:04:31,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:31,011 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 0 case distinctions, treesize of input 95 treesize of output 69 [2022-11-25 18:04:31,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:31,232 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 0 case distinctions, treesize of input 143 treesize of output 101 [2022-11-25 18:04:31,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:31,319 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 110 treesize of output 84 [2022-11-25 18:04:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:04:31,413 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 62 treesize of output 52 [2022-11-25 18:04:32,307 INFO L321 Elim1Store]: treesize reduction 116, result has 26.1 percent of original size [2022-11-25 18:04:32,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 245 treesize of output 234 [2022-11-25 18:04:32,356 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-11-25 18:04:32,356 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 215 treesize of output 225 [2022-11-25 18:04:32,532 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 338 treesize of output 334 [2022-11-25 18:04:33,148 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 12 treesize of output 8 [2022-11-25 18:04:33,190 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 12 treesize of output 8 [2022-11-25 18:04:33,268 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 11 treesize of output 7 [2022-11-25 18:04:33,327 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 11 treesize of output 7 [2022-11-25 18:04:35,144 INFO L321 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2022-11-25 18:04:35,145 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 266 treesize of output 274 [2022-11-25 18:04:36,398 INFO L321 Elim1Store]: treesize reduction 136, result has 52.3 percent of original size [2022-11-25 18:04:36,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 35 case distinctions, treesize of input 247 treesize of output 242 [2022-11-25 18:04:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:04:39,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:04:40,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347451849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:04:40,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:04:40,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 39 [2022-11-25 18:04:40,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281862218] [2022-11-25 18:04:40,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:04:40,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-25 18:04:40,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:04:40,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-25 18:04:40,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1543, Unknown=34, NotChecked=0, Total=1722 [2022-11-25 18:04:40,137 INFO L87 Difference]: Start difference. First operand 421 states and 473 transitions. Second operand has 40 states, 40 states have (on average 2.525) internal successors, (101), 27 states have internal predecessors, (101), 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 18:04:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:04:57,875 INFO L93 Difference]: Finished difference Result 628 states and 701 transitions. [2022-11-25 18:04:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-25 18:04:57,876 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.525) internal successors, (101), 27 states have internal predecessors, (101), 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 59 [2022-11-25 18:04:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:04:57,879 INFO L225 Difference]: With dead ends: 628 [2022-11-25 18:04:57,879 INFO L226 Difference]: Without dead ends: 625 [2022-11-25 18:04:57,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1495 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=558, Invalid=5257, Unknown=37, NotChecked=0, Total=5852 [2022-11-25 18:04:57,881 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 1722 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 4685 mSolverCounterSat, 211 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 4901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 4685 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:04:57,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 1153 Invalid, 4901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 4685 Invalid, 5 Unknown, 0 Unchecked, 8.5s Time] [2022-11-25 18:04:57,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-11-25 18:04:58,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 425. [2022-11-25 18:04:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 381 states have (on average 1.120734908136483) internal successors, (427), 394 states have internal predecessors, (427), 32 states have call successors, (32), 15 states have call predecessors, (32), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:04:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 474 transitions. [2022-11-25 18:04:58,101 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 474 transitions. Word has length 59 [2022-11-25 18:04:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:04:58,102 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 474 transitions. [2022-11-25 18:04:58,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.525) internal successors, (101), 27 states have internal predecessors, (101), 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 18:04:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 474 transitions. [2022-11-25 18:04:58,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-25 18:04:58,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:04:58,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:04:58,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:04:58,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 18:04:58,311 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:04:58,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:04:58,312 INFO L85 PathProgramCache]: Analyzing trace with hash -678154033, now seen corresponding path program 1 times [2022-11-25 18:04:58,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:04:58,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764408987] [2022-11-25 18:04:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:04:58,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:04:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:04:59,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:04:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:04:59,728 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 18:04:59,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:04:59,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764408987] [2022-11-25 18:04:59,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764408987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:04:59,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:04:59,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:04:59,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509541917] [2022-11-25 18:04:59,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:04:59,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:04:59,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:04:59,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:04:59,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:04:59,731 INFO L87 Difference]: Start difference. First operand 425 states and 474 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:05:01,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:05:01,427 INFO L93 Difference]: Finished difference Result 439 states and 488 transitions. [2022-11-25 18:05:01,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:05:01,428 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-11-25 18:05:01,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:05:01,430 INFO L225 Difference]: With dead ends: 439 [2022-11-25 18:05:01,430 INFO L226 Difference]: Without dead ends: 436 [2022-11-25 18:05:01,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:05:01,431 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 304 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:05:01,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 288 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 18:05:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-25 18:05:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 425. [2022-11-25 18:05:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 381 states have (on average 1.1181102362204725) internal successors, (426), 394 states have internal predecessors, (426), 32 states have call successors, (32), 15 states have call predecessors, (32), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 18:05:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 473 transitions. [2022-11-25 18:05:01,632 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 473 transitions. Word has length 60 [2022-11-25 18:05:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:05:01,633 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 473 transitions. [2022-11-25 18:05:01,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:05:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 473 transitions. [2022-11-25 18:05:01,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 18:05:01,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:05:01,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 18:05:01,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 18:05:01,634 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:05:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:05:01,635 INFO L85 PathProgramCache]: Analyzing trace with hash 697431940, now seen corresponding path program 2 times [2022-11-25 18:05:01,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:05:01,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058010441] [2022-11-25 18:05:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:05:01,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:05:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:05:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:05:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:06,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 18:05:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:05:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:05:06,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058010441] [2022-11-25 18:05:06,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058010441] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:05:06,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697590744] [2022-11-25 18:05:06,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:05:06,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:05:06,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:05:06,780 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:05:06,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 18:05:07,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:05:07,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:05:07,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 258 conjunts are in the unsatisfiable core [2022-11-25 18:05:07,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:05:07,655 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:05:07,655 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 17 treesize of output 21 [2022-11-25 18:05:07,756 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 23 treesize of output 23 [2022-11-25 18:05:07,763 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 16 treesize of output 18 [2022-11-25 18:05:07,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:07,786 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 17 treesize of output 7 [2022-11-25 18:05:07,799 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 9 treesize of output 3 [2022-11-25 18:05:08,069 INFO L321 Elim1Store]: treesize reduction 73, result has 3.9 percent of original size [2022-11-25 18:05:08,070 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 4 case distinctions, treesize of input 101 treesize of output 107 [2022-11-25 18:05:08,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:08,106 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 18:05:08,107 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 89 [2022-11-25 18:05:08,114 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 54 [2022-11-25 18:05:08,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:08,127 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 64 treesize of output 38 [2022-11-25 18:05:08,153 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 18:05:08,153 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 1 case distinctions, treesize of input 64 treesize of output 58 [2022-11-25 18:05:08,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:08,183 INFO L321 Elim1Store]: treesize reduction 30, result has 40.0 percent of original size [2022-11-25 18:05:08,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 55 [2022-11-25 18:05:08,434 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 18:05:08,434 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 157 treesize of output 138 [2022-11-25 18:05:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:08,443 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 86 treesize of output 86 [2022-11-25 18:05:08,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:08,450 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 16 treesize of output 20 [2022-11-25 18:05:08,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:08,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:08,473 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-25 18:05:08,473 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 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-25 18:05:08,763 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 18:05:08,764 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 18:05:08,949 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 89 treesize of output 81 [2022-11-25 18:05:08,962 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 64 treesize of output 60 [2022-11-25 18:05:09,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:09,023 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 83 treesize of output 55 [2022-11-25 18:05:09,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:09,029 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 41 treesize of output 21 [2022-11-25 18:05:09,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:09,425 INFO L321 Elim1Store]: treesize reduction 32, result has 13.5 percent of original size [2022-11-25 18:05:09,426 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 236 treesize of output 190 [2022-11-25 18:05:09,459 INFO L321 Elim1Store]: treesize reduction 80, result has 5.9 percent of original size [2022-11-25 18:05:09,460 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 210 treesize of output 219 [2022-11-25 18:05:09,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:09,472 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 0 case distinctions, treesize of input 172 treesize of output 150 [2022-11-25 18:05:09,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:09,482 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 91 [2022-11-25 18:05:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:09,494 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 97 treesize of output 87 [2022-11-25 18:05:09,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:09,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 71 [2022-11-25 18:05:09,516 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 10 treesize of output 9 [2022-11-25 18:05:09,526 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 8 treesize of output 7 [2022-11-25 18:05:10,118 INFO L321 Elim1Store]: treesize reduction 96, result has 22.6 percent of original size [2022-11-25 18:05:10,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 5914 treesize of output 4698 [2022-11-25 18:05:10,216 INFO L321 Elim1Store]: treesize reduction 90, result has 21.7 percent of original size [2022-11-25 18:05:10,217 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 5843 treesize of output 5857 [2022-11-25 18:05:10,717 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 18:05:10,820 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 18:05:10,850 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 15 treesize of output 23 [2022-11-25 18:05:11,013 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:05:11,568 INFO L321 Elim1Store]: treesize reduction 41, result has 62.4 percent of original size [2022-11-25 18:05:11,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 150 treesize of output 197 [2022-11-25 18:05:11,940 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 18:05:11,940 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 151 treesize of output 144 [2022-11-25 18:05:11,969 INFO L321 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2022-11-25 18:05:11,969 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 4 case distinctions, treesize of input 123 treesize of output 133 [2022-11-25 18:05:12,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,111 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:05:12,111 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 145 treesize of output 88 [2022-11-25 18:05:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,126 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:05:12,127 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 53 [2022-11-25 18:05:12,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,572 INFO L321 Elim1Store]: treesize reduction 102, result has 27.7 percent of original size [2022-11-25 18:05:12,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 229 treesize of output 170 [2022-11-25 18:05:12,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,672 INFO L321 Elim1Store]: treesize reduction 120, result has 26.4 percent of original size [2022-11-25 18:05:12,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 218 treesize of output 227 [2022-11-25 18:05:12,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:12,789 INFO L321 Elim1Store]: treesize reduction 113, result has 32.7 percent of original size [2022-11-25 18:05:12,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 110 treesize of output 153 [2022-11-25 18:05:13,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:13,314 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 105 treesize of output 105 [2022-11-25 18:05:13,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:13,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 110 [2022-11-25 18:05:13,671 INFO L321 Elim1Store]: treesize reduction 116, result has 26.1 percent of original size [2022-11-25 18:05:13,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 189 treesize of output 192 [2022-11-25 18:05:13,698 INFO L321 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2022-11-25 18:05:13,698 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 162 treesize of output 170 [2022-11-25 18:05:14,456 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 56 treesize of output 48 [2022-11-25 18:05:14,668 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 20 [2022-11-25 18:05:14,688 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 20 [2022-11-25 18:05:18,891 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-25 18:05:19,103 INFO L321 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2022-11-25 18:05:19,103 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 40 [2022-11-25 18:05:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:05:19,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:05:19,845 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_~#gl_list~0.offset| 4))) (and (forall ((v_ArrVal_5066 (Array Int Int)) (v_ArrVal_5067 (Array Int Int))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_5066) |c_~#gl_list~0.base|) .cse3))) (or (not (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_5067))) (let ((.cse1 (select (select .cse0 |c_~#gl_list~0.base|) .cse3))) (= (select (select .cse0 .cse1) (+ .cse2 4)) .cse1)))) (= |c_~#gl_list~0.offset| .cse2)))) (forall ((v_ArrVal_5066 (Array Int Int)) (v_ArrVal_5067 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_5067))) (let ((.cse5 (select (select .cse4 |c_~#gl_list~0.base|) .cse3))) (or (not (= (select (select .cse4 .cse5) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_5066) |c_~#gl_list~0.base|) .cse3) 4)) .cse5)) (= .cse5 |c_~#gl_list~0.base|))))))) is different from false [2022-11-25 18:05:20,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697590744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:05:20,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:05:20,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23] total 41 [2022-11-25 18:05:20,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661316845] [2022-11-25 18:05:20,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:05:20,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-25 18:05:20,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:05:20,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-25 18:05:20,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=2251, Unknown=35, NotChecked=96, Total=2550 [2022-11-25 18:05:20,761 INFO L87 Difference]: Start difference. First operand 425 states and 473 transitions. Second operand has 42 states, 42 states have (on average 2.5476190476190474) internal successors, (107), 29 states have internal predecessors, (107), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 18:05:27,666 WARN L539 Checker$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 18:05:34,878 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 18:05:47,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:05:47,243 INFO L93 Difference]: Finished difference Result 736 states and 820 transitions. [2022-11-25 18:05:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-25 18:05:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.5476190476190474) internal successors, (107), 29 states have internal predecessors, (107), 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 62 [2022-11-25 18:05:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:05:47,247 INFO L225 Difference]: With dead ends: 736 [2022-11-25 18:05:47,247 INFO L226 Difference]: Without dead ends: 733 [2022-11-25 18:05:47,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=595, Invalid=6007, Unknown=44, NotChecked=160, Total=6806 [2022-11-25 18:05:47,249 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 1645 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 7525 mSolverCounterSat, 210 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 7782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 7525 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:05:47,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 1656 Invalid, 7782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [210 Valid, 7525 Invalid, 47 Unknown, 0 Unchecked, 17.2s Time] [2022-11-25 18:05:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-11-25 18:05:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 545. [2022-11-25 18:05:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 491 states have (on average 1.1181262729124237) internal successors, (549), 505 states have internal predecessors, (549), 39 states have call successors, (39), 19 states have call predecessors, (39), 14 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 18:05:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 608 transitions. [2022-11-25 18:05:47,433 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 608 transitions. Word has length 62 [2022-11-25 18:05:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:05:47,433 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 608 transitions. [2022-11-25 18:05:47,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.5476190476190474) internal successors, (107), 29 states have internal predecessors, (107), 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 18:05:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 608 transitions. [2022-11-25 18:05:47,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 18:05:47,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:05:47,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:05:47,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 18:05:47,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-25 18:05:47,643 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:05:47,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:05:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash 558719418, now seen corresponding path program 1 times [2022-11-25 18:05:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:05:47,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922520057] [2022-11-25 18:05:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:05:47,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:05:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:48,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:05:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:49,124 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 18:05:49,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:05:49,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922520057] [2022-11-25 18:05:49,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922520057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:05:49,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:05:49,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:05:49,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695393463] [2022-11-25 18:05:49,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:05:49,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:05:49,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:05:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:05:49,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:05:49,127 INFO L87 Difference]: Start difference. First operand 545 states and 608 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:05:50,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:05:50,992 INFO L93 Difference]: Finished difference Result 551 states and 612 transitions. [2022-11-25 18:05:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:05:50,993 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-11-25 18:05:50,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:05:50,996 INFO L225 Difference]: With dead ends: 551 [2022-11-25 18:05:50,996 INFO L226 Difference]: Without dead ends: 548 [2022-11-25 18:05:50,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:05:50,997 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 295 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:05:50,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 295 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:05:50,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-25 18:05:51,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 545. [2022-11-25 18:05:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 491 states have (on average 1.1160896130346232) internal successors, (548), 505 states have internal predecessors, (548), 39 states have call successors, (39), 19 states have call predecessors, (39), 14 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 18:05:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 607 transitions. [2022-11-25 18:05:51,224 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 607 transitions. Word has length 63 [2022-11-25 18:05:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:05:51,224 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 607 transitions. [2022-11-25 18:05:51,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:05:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 607 transitions. [2022-11-25 18:05:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 18:05:51,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:05:51,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 18:05:51,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 18:05:51,226 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:05:51,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:05:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1657846127, now seen corresponding path program 2 times [2022-11-25 18:05:51,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:05:51,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253287719] [2022-11-25 18:05:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:05:51,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:05:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 18:05:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:05:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 18:05:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:05:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:05:58,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:05:58,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253287719] [2022-11-25 18:05:58,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253287719] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:05:58,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867769210] [2022-11-25 18:05:58,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:05:58,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:05:58,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:05:58,393 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:05:58,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b7fa73-187a-4444-9fe2-8445e3427412/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 18:05:59,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:05:59,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:05:59,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 271 conjunts are in the unsatisfiable core [2022-11-25 18:05:59,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:05:59,165 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:05:59,165 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 17 treesize of output 21 [2022-11-25 18:05:59,269 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 23 treesize of output 23 [2022-11-25 18:05:59,285 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 16 treesize of output 18 [2022-11-25 18:05:59,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:59,306 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 17 treesize of output 7 [2022-11-25 18:05:59,311 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 9 treesize of output 3 [2022-11-25 18:05:59,634 INFO L321 Elim1Store]: treesize reduction 73, result has 3.9 percent of original size [2022-11-25 18:05:59,634 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 4 case distinctions, treesize of input 118 treesize of output 131 [2022-11-25 18:05:59,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:59,680 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 18:05:59,680 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 107 [2022-11-25 18:05:59,704 INFO L321 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2022-11-25 18:05:59,704 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 53 treesize of output 47 [2022-11-25 18:05:59,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:59,712 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 41 treesize of output 36 [2022-11-25 18:05:59,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:05:59,737 INFO L321 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2022-11-25 18:05:59,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 40 [2022-11-25 18:06:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,129 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 76 treesize of output 74 [2022-11-25 18:06:00,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,138 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 65 [2022-11-25 18:06:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,145 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 88 treesize of output 88 [2022-11-25 18:06:00,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,154 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 66 [2022-11-25 18:06:00,163 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 15 treesize of output 21 [2022-11-25 18:06:00,191 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 18:06:00,235 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 43 treesize of output 31 [2022-11-25 18:06:00,618 INFO L321 Elim1Store]: treesize reduction 60, result has 31.0 percent of original size [2022-11-25 18:06:00,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 146 treesize of output 155 [2022-11-25 18:06:00,882 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 18:06:00,882 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 144 treesize of output 122 [2022-11-25 18:06:00,893 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-25 18:06:00,893 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 1 case distinctions, treesize of input 143 treesize of output 138 [2022-11-25 18:06:00,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,984 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:06:00,984 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 129 treesize of output 69 [2022-11-25 18:06:00,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:00,993 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:06:00,994 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 73 treesize of output 49 [2022-11-25 18:06:01,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,331 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:06:01,331 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 5 new quantified variables, introduced 2 case distinctions, treesize of input 245 treesize of output 160 [2022-11-25 18:06:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,354 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-25 18:06:01,354 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 215 treesize of output 176 [2022-11-25 18:06:01,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,362 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 0 case distinctions, treesize of input 173 treesize of output 141 [2022-11-25 18:06:01,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,381 INFO L321 Elim1Store]: treesize reduction 30, result has 14.3 percent of original size [2022-11-25 18:06:01,381 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 170 treesize of output 145 [2022-11-25 18:06:01,401 INFO L321 Elim1Store]: treesize reduction 48, result has 9.4 percent of original size [2022-11-25 18:06:01,402 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 3 case distinctions, treesize of input 152 treesize of output 174 [2022-11-25 18:06:01,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:01,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 108 [2022-11-25 18:06:01,424 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 90 treesize of output 92 [2022-11-25 18:06:01,434 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 18:06:01,451 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 42 treesize of output 15 [2022-11-25 18:06:01,458 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 18:06:01,823 INFO L321 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2022-11-25 18:06:01,824 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 205 treesize of output 185 [2022-11-25 18:06:01,862 INFO L321 Elim1Store]: treesize reduction 90, result has 21.7 percent of original size [2022-11-25 18:06:01,863 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 183 treesize of output 187 [2022-11-25 18:06:02,566 INFO L321 Elim1Store]: treesize reduction 19, result has 71.6 percent of original size [2022-11-25 18:06:02,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 187 treesize of output 220 [2022-11-25 18:06:02,950 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 18:06:02,951 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 189 treesize of output 170 [2022-11-25 18:06:02,982 INFO L321 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2022-11-25 18:06:02,982 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 167 treesize of output 167 [2022-11-25 18:06:03,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,164 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:06:03,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 183 treesize of output 112 [2022-11-25 18:06:03,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,189 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:06:03,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 84 treesize of output 73 [2022-11-25 18:06:03,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:03,926 INFO L321 Elim1Store]: treesize reduction 150, result has 28.9 percent of original size [2022-11-25 18:06:03,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 289 treesize of output 222 [2022-11-25 18:06:03,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:04,034 INFO L321 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2022-11-25 18:06:04,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 293 treesize of output 296 [2022-11-25 18:06:04,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:04,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:04,124 INFO L321 Elim1Store]: treesize reduction 140, result has 28.9 percent of original size [2022-11-25 18:06:04,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 166 treesize of output 178 [2022-11-25 18:06:04,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:04,220 INFO L321 Elim1Store]: treesize reduction 87, result has 45.6 percent of original size [2022-11-25 18:06:04,221 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 4 new quantified variables, introduced 8 case distinctions, treesize of input 172 treesize of output 219 [2022-11-25 18:06:04,777 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 3 [2022-11-25 18:06:04,847 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 3 [2022-11-25 18:06:05,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:05,269 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 137 treesize of output 137 [2022-11-25 18:06:05,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:05,365 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 16 treesize of output 20 [2022-11-25 18:06:05,956 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:06:05,956 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 335 treesize of output 343 [2022-11-25 18:06:07,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:07,567 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 16 treesize of output 20 [2022-11-25 18:06:07,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:07,622 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 16 treesize of output 20 [2022-11-25 18:06:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:07,690 INFO L321 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2022-11-25 18:06:07,690 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 45 [2022-11-25 18:06:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:07,748 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 16 treesize of output 20 [2022-11-25 18:06:08,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:06:08,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1379 treesize of output 1015 [2022-11-25 18:06:10,130 INFO L321 Elim1Store]: treesize reduction 126, result has 41.7 percent of original size [2022-11-25 18:06:10,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 445 treesize of output 445 [2022-11-25 18:06:10,305 INFO L321 Elim1Store]: treesize reduction 190, result has 43.3 percent of original size [2022-11-25 18:06:10,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 405 treesize of output 462 [2022-11-25 18:09:30,931 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 3 [2022-11-25 18:13:09,024 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:13:09,033 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:14:01,074 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:14:01,085 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:14:30,933 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:14:30,943 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:14:47,265 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:14:47,277 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:14:54,259 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 3 [2022-11-25 18:14:55,077 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 3 [2022-11-25 18:14:57,286 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 7 treesize of output 3 [2022-11-25 18:14:58,248 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 3 [2022-11-25 18:15:06,565 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 3 [2022-11-25 18:15:07,044 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 3 [2022-11-25 18:15:08,345 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 3 [2022-11-25 18:15:08,484 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 3